Introduction
Sections 14 to 17 of the Bharatiya Nyaya Sanhita, 2023 (BNS) form an important part of the General Exceptions under criminal law. These provisions deal with situations where a person may perform an act which appears to constitute an offence, but the law does not hold that person criminally liable because the act was done under a particular legal obligation, authority, or belief.
These sections mainly deal with acts done by a person who is bound by law, acts done under the mistake of fact, acts of a Judge when acting judicially, and acts done pursuant to the judgment or order of a Court. The underlying principle is that a person should not be held criminally responsible when the law itself requires, permits, or recognises the act in the circumstances specified by these provisions.
A particularly important principle is found in Section 14, which distinguishes between a mistake of fact and a mistake of law. Where a person, because of a mistake of fact and in good faith, believes himself to be bound by law to do an act, the law may provide protection. However, a person cannot generally claim the benefit of this provision merely because he was mistaken about what the law provides.
Sections 15 to 17 further extend these principles to judicial acts, acts done pursuant to a judgment or order of a Court, and acts done by a person who is justified by law or who by reason of a mistake of fact, and not by reason of a mistake of law, in good faith believes himself to be justified by law.
Thus, Sections 14 to 17 BNS are important for understanding when an act performed under legal obligation, judicial authority, or a bona fide mistake of fact will not amount to an offence.
In the following sections, each provision is explained in simple language using the important Bare Act terminology, along with its ingredients, examples, distinction between mistake of fact and mistake of law, and quick-revision points.
Section 14 — Act done by a person bound, or by mistake of fact believing himself bound, by law
Bare Act idea:
“Nothing is an offence which is done by a person who is, or who by reason of a mistake of fact and not by reason of a mistake of law in good faith believes himself to be, bound by law to do it.”
Introduction
Section 14 of the Bharatiya Nyaya Sanhita, 2023 forms part of the General Exceptions. It deals with acts done by a person who is bound by law to do them and also with acts done by a person who, because of a mistake of fact and in good faith, believes himself to be bound by law.
At the same time, Section 14 makes an important distinction between a mistake of fact and a mistake of law. A mistake of fact may, subject to the requirements of the section, provide protection, whereas a person cannot claim the benefit of Section 14 merely because he was ignorant of or mistaken about the law.
This section is based upon the principle ‘ignorantia facti excusat (Ignorance of fact is excusable) and ignorantia juris non excusať (ignorance of law is not excusable).
“Ignorantia facti excusat“
Meaning of the Maxim
The Latin maxim “Ignorantia facti excusat” means that ignorance or mistake of fact is excusable.
The principle recognises that a person may honestly act on the basis of facts which he believes to be true, although those facts may later turn out to be incorrect. If the mistaken belief concerns a fact and not the law, and the person acts in good faith, the mistake may protect him from criminal liability where the statutory requirements are satisfied.
The important question is therefore:
What was the person mistaken about?
If the mistake concerns the factual circumstances in which the person acted, it may amount to a mistake of fact.
Meaning of Mistake of Fact
A mistake of fact occurs when a person has an incorrect belief regarding an existing factual situation.
The mistake may concern the identity of a person, ownership or possession of property, existence of a particular document, occurrence of an event, or any other relevant factual circumstance.
For example, a person may honestly believe that a particular individual is the person named in a warrant when, in reality, that individual is someone else. The mistake in such a case concerns the identity of the person, which is a question of fact.
A mistake of fact should therefore be distinguished from a misunderstanding of the law. The person may know what the law requires but may be mistaken about the facts to which that law applies.
Section 14 and Mistake of Fact
Section 14 specifically protects a person who, because of a mistake of fact, and not because of a mistake of law, in good faith believes himself to be bound by law to do an act.
Thus, the mistake must have a direct connection with the person’s belief that he is legally required to perform the act.
For example, suppose a Court orders its officer A to arrest Y. A makes due enquiry and honestly believes that Z is Y. Acting on that belief, A arrests Z.
Later, it is discovered that Z was not Y.
A’s mistake concerns the identity of the person. He did not misunderstand the law or the Court’s order. He understood that he was required to arrest Y but mistakenly believed that Z was Y.
If A acted in good faith after due enquiry, Section 14 protects his act.
Why Can a Mistake of Fact Be Excusable?
The law recognises that criminal responsibility may depend upon the person’s knowledge, intention, or belief concerning the circumstances in which the act was committed, depending upon the particular offence.
A person who knowingly and deliberately performs an unlawful act stands in a different position from a person who performs the same physical act because he honestly believes that certain facts exist.
For example, a person who deliberately arrests an innocent individual knowing that the person is not the person named in a warrant is in a different position from a Court officer who, after due enquiry, honestly mistakes one person for another.
Therefore, the law recognises that an honest mistake concerning a material fact can, in appropriate circumstances, affect criminal liability.
Ignorantia Juris Non Excusat — Ignorance of Law is Not Excusable
Meaning of the Maxim
The Latin maxim “Ignorantia juris non excusat” means “ignorance of law is not an excuse.”
The principle means that a person cannot ordinarily escape criminal liability merely by claiming that he did not know the law, or that he misunderstood what the law provides.
Section 14 itself makes this distinction clear by referring to a “mistake of fact and not by reason of a mistake of law.”
Therefore, where a person’s belief arises from a misunderstanding of the legal rule itself, Section 14 does not provide protection on that ground.
What is a Mistake of Law?
A mistake of law occurs when a person knows the relevant facts but is mistaken about the legal effect of those facts.
For example, A knows that he is entering another person’s property without permission. However, A believes that the law permits him to do so and therefore says:
“I did not know that the law prohibited this conduct.”
A’s mistake is not about what happened. He knows that he entered the property without permission. His mistake concerns the legal consequences of his conduct.
This is a mistake of law.
Therefore, A cannot claim the benefit of Section 14 merely because he did not know or misunderstood the law.
Why is Ignorance of Law Not Excused?
There is an important practical reason behind this principle. If ignorance of law were generally accepted as a defence, a person accused of an offence could simply claim that he was unaware of the relevant legal prohibition.
This would make the administration and enforcement of criminal law extremely difficult. The law therefore generally proceeds on the principle that a person cannot avoid legal responsibility merely by saying that he did not know the law.
The principle encourages individuals to comply with the law rather than treating lack of legal knowledge as a general defence.
The Importance of “Good Faith” under Section 14
The expression “in good faith” is an important requirement of Section 14.
A person cannot create a false factual belief merely to avoid criminal responsibility. His belief that he is bound by law must be genuine and honest.
The surrounding circumstances are therefore relevant in determining whether the person acted in good faith.
For example, where a Court officer receives an order to arrest Y, makes a proper enquiry, examines the available information, and honestly concludes that Z is Y, the circumstances may demonstrate good faith.
On the other hand, if the officer makes no enquiry at all and deliberately arrests a person whom he knows is not Y, he cannot simply claim that he made a mistake of fact.
Thus, good faith prevents a person from using a false or dishonest factual mistake as a means of avoiding liability.
Difference Between Mistake of Fact and Mistake of Law
The distinction can be understood by asking a simple question:
Is the person mistaken about the facts or about the law?
If the person is mistaken about the factual circumstances, it is a mistake of fact.
If the person knows the facts but is mistaken about what the law permits, prohibits, requires, or provides, it is a mistake of law.
Mistake of Fact
A is ordered to arrest Y. After making due enquiry, A honestly believes that Z is Y and arrests Z.
The mistake is about identity.
This is a mistake of fact.
Mistake of Law
A knows that Z is the person standing before him, but A believes that the law allows him to arrest Z even though he has no legal authority to do so.
The mistake concerns the legal authority to arrest.
This is a mistake of law.
First Situation: Person Actually Bound by Law
The first part of Section 14 deals with a person who is actually bound by law to do an act.
Where the law imposes a legal duty upon a person and he performs that duty, the act is not an offence merely because the act might otherwise appear to fall within the definition of an offence.
For example, a police officer may be legally required to arrest a person pursuant to a valid warrant. If the officer makes the arrest in accordance with the lawful warrant and his legal duty, the act is protected under Section 14.
The underlying principle is simple:
A person cannot ordinarily be criminally liable for doing what the law itself requires him to do.
Second Situation: Person Believing Himself Bound Because of Mistake of Fact
The second situation arises where the person is not actually bound by law, but because of a mistake of fact, he honestly believes that he is legally required to perform the act.
Here, the person’s protection depends upon the conditions contained in Section 14.
His belief must arise from a mistake of fact, he must act in good faith, and the belief must not be based upon a mistake of law.
The classic illustration is the Court officer who is ordered to arrest Y but, after due enquiry, mistakes Z for Y.
Illustrations to Section 14
Illustration (a): Soldier Acting Under a Lawful Command
A is a soldier. His superior officer orders him to fire upon a mob, and the order is given in conformity with the commands of law. A follows the order and fires upon the mob.
A has committed no offence.
The reason is that A is acting pursuant to a lawful command and is bound by law to obey it in the circumstances contemplated by the provision.
The important point is that the command must be in conformity with the law.
Principle
Lawful command + person bound by law to obey = No offence under Section 14.
Illustration (b): Court Officer Mistaking the Identity of a Person
A is an officer of a Court. The Court orders A to arrest Y. After making due enquiry, A believes that Z is Y and arrests Z.
Later, it is discovered that Z was not Y.
A has committed no offence.
Here, A’s mistake concerns a fact—the identity of the person. He did not misunderstand the Court’s order or the law. He honestly believed that the person before him was Y.
Because the belief arose from a mistake of fact and A acted after due enquiry and in good faith, Section 14 provides protection.
Principle
Mistake of fact + due enquiry + good faith + belief of legal obligation = No offence under Section 14.
Important Conditions for Applying Section 14
Section 14 should not be understood as providing a general defence for every mistake. The particular requirements of the provision must be satisfied.
The person must have done an act which would otherwise potentially attract criminal liability. He must either actually be bound by law to perform the act or, because of a mistake of fact, believe himself to be so bound.
Where the person is relying upon a mistake of fact, the belief must be held in good faith. The mistake must not arise merely because the person misunderstood or was ignorant of the law.
Therefore, the protection under Section 14 rests upon the connection between the fact, the person’s belief, the legal obligation, and good faith.
What Section 14 Does Not Protect
Section 14 does not protect a person merely because he says:
“I did not know that the law prohibited my act.”
For example, A knowingly performs an act which is prohibited by law but claims that he was unaware of the legal prohibition.
This is not a mistake about a factual circumstance. It is a mistake or ignorance of law.
Therefore, such a claim does not bring the person within Section 14.
Similarly, a person cannot deliberately ignore obvious facts and later claim that he honestly made a mistake of fact. The requirement of good faith is important in determining whether the claimed factual mistake is genuine.
Quick Revision Table
| Basis | Mistake of Fact | Mistake of Law |
|---|---|---|
| Latin maxim | Ignorantia facti excusat | Ignorantia juris non excusat |
| Meaning | Ignorance or mistake of fact may be excusable | Ignorance or mistake of law is not excusable |
| Mistake relates to | Facts or circumstances | Legal rule or legal effect |
| Section 14 | May provide protection when statutory conditions are satisfied | Does not provide protection |
| Good faith | Essential where protection is claimed on the basis of mistake of fact | Good faith does not turn a mistake of law into a mistake of fact |
| Example | Mistaking Z for Y after due enquiry | Believing the law permits an act which it prohibits |
| Main question | “What are the facts?” | “What does the law say?” |
Mistaken Belief Regarding Age — R vs. Prince (1875)
In R vs. Prince (1875), the accused took an unmarried girl away from her father’s custody without his consent. The law made it an offence to take an unmarried girl under 16 years of age from her father’s custody.
The accused claimed that he honestly and reasonably believed that the girl was above 16 years old. Therefore, he argued that his mistake about her age should protect him.
However, the Court rejected this defence.
Why?
The Court considered that the accused intentionally took the girl away from her father’s custody. Even though he was mistaken about her exact age, the act he intended to do was itself considered wrongful and immoral.
Therefore, his mistake about the girl’s age did not convert his conduct into an innocent act.
In simple words:
The accused was mistaken about a fact—the girl’s age—but that mistake did not protect him because he deliberately intended to do the wrongful act of taking her away from her father’s custody.
Principle of the Case
The case demonstrates that every mistake of fact is not automatically a defence. The effect of a mistake depends upon the nature of the offence and the mental element required for that offence.
Thus, R v. Prince is important because it shows that:
Mistake of fact ≠ automatic acquittal.
A person cannot necessarily escape liability merely by saying that he was mistaken about a particular fact, especially where the act he intended to commit was itself wrongful or immoral.
Connection with Section 14 BNS
This case should be used carefully while explaining Section 14. Section 14 specifically concerns a person who, because of a mistake of fact and not a mistake of law, in good faith believes himself to be bound by law to do an act.
The Prince case illustrates a broader principle of criminal law: the existence of a factual mistake alone is insufficient; the legal effect of that mistake depends on the particular offence and the statutory requirements.
Marriage Under Good Faith — R vs. Tolson (1889)
In R vs. Tolson (1889), Mrs. Tolson was prosecuted for bigamy because she entered into a second marriage while her first husband was still legally alive.
Mrs. Tolson had married her first husband in 1880. After about a year, her husband deserted her and disappeared. Her father and others made enquiries and received information which led her to honestly believe that her husband had died, apparently after a ship bound for America had been lost with everyone on board.
After remaining under this belief for several years, Mrs. Tolson, believing herself to be a widow, married another man in 1887. The second marriage was openly performed and was not concealed.
Later, it was discovered that her first husband was still alive. She was therefore charged with bigamy.
Decision of the Court
The Court acquitted Mrs. Tolson. It accepted that she had acted in good faith and on reasonable grounds in believing that her first husband had died.
Her belief was not a deliberate attempt to evade the law. The circumstances surrounding her husband’s disappearance, together with the enquiries made by her family, gave her reasonable grounds for believing that he was dead.
Therefore, the necessary guilty intention for the offence of bigamy was absent.
Principle of the Case
The case illustrates that a genuine and reasonable mistake of fact may, in appropriate circumstances, negative the required guilty intention for an offence.
The important point is that Mrs. Tolson did not know that her husband was alive. She honestly believed that he had died and therefore believed herself to be free to marry again.
Thus:
Mistake of fact + good faith + reasonable grounds for the belief → may negative criminal liability where the required guilty intention is absent.
Why is R v. Tolson Important?
The case is particularly important for understanding the difference between a genuine mistake of fact and a mere claim of ignorance.
Mrs. Tolson’s belief was supported by the circumstances. Her husband had disappeared, enquiries had been made, and she had reasonable grounds to believe that he had died. The Court therefore treated her belief as a bona fide and reasonable mistake of fact.
The case is often contrasted with R v. Prince, because the two cases demonstrate that the effect of a mistake of fact depends upon the nature of the offence and the mental element required by law.
In Simple Words
Mrs. Tolson married again because she genuinely believed that her first husband was dead. She did not intend to commit bigamy. Since her belief was honest and based on reasonable grounds, the Court held that the required guilty intention was absent.
Key Principle
A mistake of fact can be a valid defence where it is genuine, made in good faith, supported by reasonable grounds, and negatives the mental element required for the offence.
Exam point: R v. Tolson is a leading illustration of reasonable and bona fide mistake of fact and the importance of mens rea in determining criminal liability.
Section 15 BNS — Act of Judge When Acting Judicially
Meaning
Section 15 of the Bharatiya Nyaya Sanhita, 2023 provides protection to a Judge when acting judicially. It states that nothing is an offence which is done by a Judge when acting judicially in the exercise of any power which is, or which in good faith he believes to be, given to him by law.
In simple words, when a Judge performs an act as part of his judicial functions, and he is exercising a power which is actually given to him by law, the act will not be treated as an offence merely because someone later disagrees with the decision or considers the act to be legally incorrect.
The provision also covers a situation where the Judge in good faith believes that the law gives him a particular power, even if it is later found that the power was not actually given to him by law.
“When Acting Judicially”
The expression “acting judicially” is important. The protection is available when the Judge is performing a function in his judicial capacity, such as hearing a matter, deciding a case, issuing an order, or exercising a judicial power given by law.
The protection is therefore connected with the judicial act of the Judge, and not with every act personally performed by a person who happens to hold the office of Judge.
For example, when a Judge passes an order in a case while exercising a power conferred upon him by law, he is acting judicially.
“In the Exercise of Any Power Given to Him by Law”
The Judge must be exercising a power which is given to him by law. If the law authorises the Judge to perform a particular judicial act, the Judge is protected when he exercises that power in his judicial capacity.
The purpose is to ensure that Judges can perform their judicial functions without being exposed to criminal liability merely because their judicial acts are subsequently challenged, reversed, or found to contain an error.
For example, if a Judge has legal authority to issue a particular order during judicial proceedings and exercises that authority while deciding the matter, the act falls within Section 15.
“Or Which in Good Faith He Believes to Be Given to Him by Law”
Section 15 goes further and also protects a Judge who in good faith believes that a particular power has been given to him by law.
This means that the Judge does not necessarily have to be legally correct about the existence or extent of the power, provided that his belief that the power exists is held in good faith.
For instance, suppose a Judge honestly believes that a particular procedural power is available to him under the law and exercises that power while acting judicially. If it is later determined that the law did not actually confer that power upon him, Section 15 may still protect the Judge if his belief was in good faith.
The requirement of good faith is important because the provision does not protect a Judge who knowingly acts without legal authority or uses judicial power for an improper purpose.
Purpose of Section 15
The main purpose of Section 15 is to protect the independence and proper functioning of the judiciary. Judges must be able to exercise judicial powers and make decisions according to their understanding of the law without constantly fearing criminal prosecution for every judicial act.
A judicial decision may be wrong, irregular, or capable of being challenged in appeal or revision, but that does not by itself make the Judge’s judicial act a criminal offence.
The appropriate remedy against an incorrect judicial decision is ordinarily through the legal appellate or revisional process, rather than treating the Judge’s bona fide judicial act as a criminal offence.
Simple Example
Suppose a Judge is hearing a case and the law gives him the power to issue a particular order. The Judge exercises that power and passes the order in the course of the judicial proceedings.
Even if another court later holds that the Judge misunderstood the law or that the order was legally incorrect, the Judge’s act of exercising the judicial power is protected under Section 15, provided he was acting judicially.
Similarly, if the Judge in good faith believed that the law gave him the power, the provision may protect him even if it is subsequently found that the power was not actually available to him.
Protection to Judges — Surendra Kumar Bhatia v. Kanhaiya Lal & Others
In Surendra Kumar Bhatia v. Kanhaiya Lal & Others, AIR 2009 SC 1961, the Court explained the scope of the protection given to Judges under Section 77 of the IPC, which corresponds to Section 15 of the Bharatiya Nyaya Sanhita, 2023.
The Court made it clear that the protection is not available merely because a person holds the title or position of a Judge. The person must fall within the legal meaning of “Judge” and must be acting judicially while exercising a power which is actually given to him by law, or which he in good faith believes to be given to him by law.
Therefore, the protection under Section 15 is connected with the judicial function being performed, rather than simply with the person’s official designation.
In simple words
A person cannot claim the protection of Section 15 merely by saying:
“I am a Judge.”
The requirements of the provision must be satisfied. The person must be a Judge within the meaning of the BNS and must be acting judicially while exercising the relevant power.
Thus, the basic principle of the case is:
Only a person who qualifies as a “Judge” in law and is acting judicially is entitled to the protection provided by Section 15 BNS.
The protection is intended to safeguard bona fide judicial acts, not every act performed by someone holding a judicial office.
Section 16 BNS — Act Done Pursuant to Judgment or Order of Court
Meaning
Section 16 of the Bharatiya Nyaya Sanhita, 2023 provides protection to a person who does something “in pursuance of” or which is “warranted by the judgment or order of a Court”, provided that the judgment or order is still in force and the person doing the act “in good faith believes that the Court had such jurisdiction.”
In simple words, if a person performs an act because a Court has passed an order directing or authorising that act, the person will not commit an offence merely because it is later discovered that the Court did not actually have jurisdiction to pass that order. The important requirement is that the person must have acted in good faith, believing that the Court had the necessary jurisdiction.
“In Pursuance of” a Judgment or Order
The expression “in pursuance of” means acting in accordance with or for the purpose of carrying out a Court’s judgment or order.
For example, suppose a Court passes an order directing an officer to take possession of certain property. The officer, believing the order to be legally valid, takes possession of the property in accordance with that order.
If the officer acts while the judgment or order is still in force and in good faith believes that the Court had jurisdiction, Section 16 may protect his act.
The protection exists because the person is not acting on his own authority. He is carrying out what has been ordered or authorised by the Court.
“Warranted by the Judgment or Order of a Court”
Section 16 also uses the expression “warranted by the judgment or order of a Court.”
This means that the act must be justified, authorised, or supported by the judgment or order.
The person claiming protection must therefore be able to show a connection between the act performed and the Court’s judgment or order.
For example, where a Court orders the attachment of property and an authorised officer attaches that property in accordance with the order, the officer’s act is warranted by the judgment or order of the Court.
The provision does not give a person unlimited authority to do anything he wishes merely because some Court order exists. The act must be in pursuance of or warranted by that particular judgment or order.
“Whilst Such Judgment or Order Remains in Force”
Another important expression in the Bare Act is:
“whilst such judgment or order remains in force”
This means that the protection under Section 16 operates only while the relevant judgment or order is legally operative.
If the judgment or order has already been set aside, cancelled, revoked, or otherwise ceased to remain in force, a person cannot ordinarily rely upon Section 16 for an act performed after that point merely by referring to the old order.
Therefore, the existence and continuing force of the Court’s judgment or order are important requirements.
What if the Court Had No Jurisdiction?
This is one of the most important features of Section 16.
The section expressly provides that the act may still be protected:
“notwithstanding the Court may have had no jurisdiction to pass such judgment or order”
In simple words, even if it is later discovered that the Court actually lacked jurisdiction to pass the judgment or order, the person who acted upon that order may still receive protection under Section 16.
However, this protection is subject to an important condition: the person must have acted in good faith and must have believed that the Court had jurisdiction.
Thus, the section protects a person who bona fide relies upon a Court order, even where the Court’s jurisdiction is subsequently found to have been defective.
“In Good Faith Believes That the Court Had Such Jurisdiction”
The requirement of good faith is central to Section 16.
The person must honestly believe that the Court had the necessary jurisdiction to pass the judgment or order. The person cannot knowingly rely upon an order which he knows was passed by a Court having no jurisdiction and then claim the protection of Section 16.
For example, if an officer receives an order from a Court and honestly believes, on the circumstances available to him, that the Court has jurisdiction, and he carries out the order while it remains in force, the provision may protect him even if a competent authority later determines that the Court actually lacked jurisdiction.
Therefore, the protection is based upon a bona fide belief in the Court’s jurisdiction, not upon deliberate disregard of the law.
Difference Between Section 15 and Section 16 BNS
| Basis | Section 15 BNS | Section 16 BNS |
|---|---|---|
| Subject matter | Protects an act of a Judge when acting judicially. | Protects an act done pursuant to or warranted by a judgment or order of a Court. |
| Who is protected? | The Judge acting judicially. | Any person who carries out the Court’s judgment or order, provided the requirements of the section are satisfied. |
| Nature of act | The Judge must be acting judicially and exercising a judicial power. | The person must act “in pursuance of” or as “warranted by” the Court’s judgment or order. |
| Source of authority | The power must be given to the Judge by law, or the Judge must in good faith believe that it is given by law. | The authority comes from a judgment or order of a Court. |
| Jurisdiction | The Judge may exercise a power which he in good faith believes is given to him by law. | Even if the Court had no jurisdiction to pass the judgment or order, protection may still apply if the person in good faith believes that the Court had such jurisdiction. |
| Good faith | The Judge’s belief that the power is given to him by law must be in good faith. | The person must in good faith believe that the Court had jurisdiction. |
| Status of Court order | The provision does not primarily concern carrying out a Court order. | The judgment or order must “remain in force” when the act is done. |
| Example | A Judge passes an order while exercising a judicial power which he is legally authorised, or in good faith believes himself authorised, to exercise. | An officer executes an order of a Court which he believes in good faith to have jurisdiction, even though the Court is later found to have lacked jurisdiction. |
| Main idea | Protection of judicial acts of a Judge. | Protection of acts carried out under a Court’s judgment or order. |
| Easy formula | Judge + Acting judicially + Judicial power + Good faith | Court order + Remains in force + Act in pursuance of order + Good faith |
Simple Example
Suppose a Court passes an order directing A to seize certain property. A believes that the Court has jurisdiction and, while the order remains in force, seizes the property exactly as directed.
Later, a higher Court holds that the original Court did not actually have jurisdiction to pass that order.
A may still be protected by Section 16 BNS because his act was done “in pursuance of” the Court’s order, the order was still “in force” when he acted, and he “in good faith” believed that the Court had jurisdiction.
What Section 16 Does Not Protect
Section 16 does not provide protection simply because a person mentions the existence of a Court order.
The act must actually be in pursuance of or warranted by the judgment or order. The judgment or order must also be in force at the time the act is performed.
Most importantly, where the Court lacked jurisdiction, the person must have in good faith believed that the Court had such jurisdiction.
Therefore, a person who knowingly acts outside the authority of a Court order, or knowingly relies upon an order which he knows to be without jurisdiction, cannot automatically claim the benefit of Section 16.
Core Principle of Section 16
The underlying principle is that a person who bona fide carries out a Court’s judgment or order should not ordinarily be exposed to criminal liability merely because the Court’s jurisdiction is later found to have been defective.
The law therefore gives protection to the person who relies upon the judgment or order while it remains in force, provided his belief regarding the Court’s jurisdiction is held in good faith.
Section 17 BNS — Act Done by a Person Justified, or by Mistake of Fact Believing Himself Justified, by Law
Introduction
Section 17 of the Bharatiya Nyaya Sanhita, 2023 (BNS) is another important provision under the General Exceptions. It protects a person who performs an act which is “justified by law”. It also protects a person who, because of a “mistake of fact” and “not by reason of a mistake of law”, “in good faith” believes that he is justified by law in doing the act.
The basic idea is that when the law itself justifies or permits a person to perform an act, that act should not be treated as an offence. The protection can also extend to a person who honestly believes that the law justifies his act, where that belief arises from a mistake of fact and is held in good faith.
Meaning of Section 17
The Bare Act provides:
“Nothing is an offence which is done by any person who is justified by law, or who by reason of a mistake of fact and not by reason of a mistake of law in good faith, believes himself to be justified by law, in doing it.”
In simple language, Section 17 covers two situations.
First, a person is actually justified by law in doing an act. In such a case, the act is not an offence.
Second, even if the person is not actually justified by law, he may receive protection when, because of a mistake of fact, he in good faith believes himself to be justified by law in doing the act.
Thus, the section is concerned with a person’s legal justification for performing an act, rather than merely with whether he is legally bound to perform it.
“Justified by Law”
The expression “justified by law” means that the law gives the person a legal basis or authority for doing the particular act.
Where a person performs an act which the law permits or justifies in the circumstances, the act does not constitute an offence merely because the act might otherwise appear unlawful.
For example, the law may give a particular public officer authority to perform an act in specified circumstances. If the officer acts within that legal authority, the act is justified by law and Section 17 may apply.
The important question is whether the law actually provides a legal justification for the act in the circumstances.
Mistake of Fact under Section 17
Section 17 also deals with a situation where the person is not actually justified by law, but he believes that he is justified because of a mistake of fact.
The person may have an incorrect belief about an existing factual circumstance, and because of that factual mistake, he may honestly believe that the law permits him to act.
For example, suppose A sees a person whom he honestly believes to be a dangerous offender who is about to commit a serious offence. Based on the facts as A reasonably understands them, he believes that the law gives him authority to take action against that person. If A’s belief is based upon a mistake of fact, rather than a misunderstanding of the law, and he acts in good faith, Section 17 may provide protection depending upon the circumstances.
The important point is that A must be mistaken about the facts, not about the legal rule.
“And Not by Reason of a Mistake of Law”
This is one of the most important limitations contained in Section 17.
The Bare Act specifically says:
“by reason of a mistake of fact and not by reason of a mistake of law”
Therefore, a person cannot claim protection merely because he misunderstood the law.
Suppose A knows all the relevant facts but believes that the law gives him a power which it does not actually give him. His mistake concerns the legal position.
That is a mistake of law, and Section 17 does not provide protection merely on that basis.
The distinction can be remembered simply:
Mistake about facts → Section 17 may apply.
Mistake about law → Section 17 does not apply.
“In Good Faith”
The expression “in good faith” is another essential requirement.
The person’s belief that he is “justified by law” must be genuine and honest. He cannot deliberately ignore the facts, act without reasonable basis, and later claim that he believed that the law justified his conduct.
Good faith therefore requires the Court to examine the circumstances in which the person formed his belief and acted upon it.
For example, if A carefully considers the circumstances and honestly believes, because of an incorrect factual assumption, that the law authorises him to act, his conduct may fall within Section 17.
However, if A knows that the factual circumstances do not justify his conduct but nevertheless acts and later claims that he believed himself justified, the protection would not ordinarily be available.
Detailed Comparison Between Section 14 and Section 17 BNS
Sections 14 and 17 of the Bharatiya Nyaya Sanhita, 2023 are closely related because both deal with the effect of a mistake of fact and both use the expressions “in good faith” and “not by reason of a mistake of law.” However, their central ideas are different.
The easiest way to understand the distinction is:
Section 14 = Bound by law
Section 17 = Justified by law
Section 14 is concerned with a person who is legally required to do an act, whereas Section 17 is concerned with a person who is legally justified or authorised to do an act.
| Basis | Section 14 BNS | Section 17 BNS |
|---|---|---|
| Basic subject | Act done by a person bound by law, or who believes himself to be so bound because of a mistake of fact. | Act done by a person justified by law, or who believes himself to be so justified because of a mistake of fact. |
| Main expression | “Bound by law” | “Justified by law” |
| Basic idea | The law requires or imposes a duty upon the person to do the act. | The law permits, authorises, or justifies the person to do the act. |
| Nature of legal position | Legal obligation/duty | Legal justification/authority |
| Question to ask | “Was the person required by law to do this?” | “Was the person legally justified in doing this?” |
| Actual legal position | The person is actually bound by law to perform the act. | The person is actually justified by law in performing the act. |
| Mistaken belief | The person believes himself to be bound by law because of a mistake of fact. | The person believes himself to be justified by law because of a mistake of fact. |
| Mistake of fact | Must cause the person to believe that he is legally bound to act. | Must cause the person to believe that he is legally justified in acting. |
| Mistake of law | Specifically excluded by the words “not by reason of a mistake of law.” | Specifically excluded by the words “not by reason of a mistake of law.” |
| Good faith | The belief that the person is bound by law must be held in good faith. | The belief that the person is justified by law must be held in good faith. |
| Who can claim it? | The provision refers to a person who is bound by law or believes himself to be so bound. | The provision expressly refers to “any person” who is justified by law or believes himself to be so justified. |
| Typical situation | A person performs an act because he believes the law requires him to do it. | A person performs an act because he believes the law permits or justifies him in doing it. |
| Illustration | A Court officer arrests Z because, after due enquiry, he mistakenly believes Z is Y, the person named in the Court’s warrant. | A sees Z apparently committing murder and apprehends Z, honestly believing that the law justifies the apprehension, although Z later turns out to have acted in private defence. |
| Nature of mistake | Mistake regarding facts leading to a belief of legal duty. | Mistake regarding facts leading to a belief of legal justification. |
| Central concept | Duty | Justification |
| Easy keyword | “I was bound to do it.” | “I was justified in doing it.” |
Simple Example to Understand Section 17
Suppose a person sees another individual apparently attacking someone. Believing, because of the circumstances, that the person is committing an unlawful attack, he intervenes to protect the victim.
If the circumstances actually justify his intervention under law, his act may be justified by law.
Even if it later turns out that he was mistaken about a relevant fact, he may still receive protection if his belief arose from a mistake of fact, and he acted in good faith, provided the other legal requirements are satisfied.
The protection therefore focuses on the person’s factual belief and good faith, rather than allowing a person to escape liability simply because he misunderstood the law.
Connection with the Principle of Mistake of Fact
Section 17 reflects the same fundamental principle discussed under the maxim:
Ignorantia facti excusat
This means that a genuine mistake concerning a fact may, in appropriate circumstances, excuse a person from criminal liability.
At the same time, Section 17 excludes protection based merely upon:
Ignorantia juris non excusat
which means that ignorance of law is not an excuse.
Therefore, the section maintains a clear distinction between a person who mistakenly understands the factual circumstances and a person who misunderstands the law itself.
Section 17 in Simple Language
Section 17 can be understood in the following way:
If the law justifies a person in doing an act, the act is not an offence. Even if the person is not actually justified by law, he may still be protected if, because of a mistake of fact and not a mistake of law, he honestly and in good faith believes that the law justifies him in doing the act.
Illustration of Section 17 BNS — Simple Explanation
A sees Z apparently committing a murder. From what A observes, it appears that Z has killed someone. Believing this to be a murder, A uses the legal power available to a person to apprehend a person who appears to have committed murder. A therefore catches Z and takes him into custody so that he can be produced before the proper authorities.
Later, it may be discovered that Z was actually acting in private defence, and therefore what A believed to be murder was not an offence at all.
Even then, A has committed no offence.
Why?
A’s mistake was about a fact. Based on the circumstances, A honestly believed that Z had committed murder. He acted in good faith and used a power which the law gives to persons in such circumstances.
A did not misunderstand the law. He knew that the law permits a person to apprehend someone whom he genuinely believes to have committed murder. His mistake was about the actual circumstances—whether Z had really committed murder or was acting in private defence.
Therefore, even though Z was ultimately found to be acting in private defence, A’s act of apprehending Z is protected under Section 17 BNS.
Principle
A person is not guilty when, in good faith and because of a mistake of fact, he believes that the law justifies him in doing an act, even though the facts later turn out to be different.
| Section | Subject | Core Rule | Key Bare Act Language | Easy Example |
|---|---|---|---|---|
| Section 14 | Act done by a person bound by law | No offence is committed when a person does an act which he is bound by law to do. It also covers a person who, due to a mistake of fact, in good faith believes himself to be so bound. | “bound by law”; “mistake of fact”; “not by reason of a mistake of law”; “in good faith” | A Court officer is ordered to arrest Y. After due enquiry, he honestly believes Z is Y and arrests Z. |
| Section 15 | Act of Judge when acting judicially | A Judge is protected when acting judicially while exercising a power actually given to him by law, or which he in good faith believes is given to him by law. | “Judge”; “acting judicially”; “exercise of any power”; “in good faith” | A Judge exercises a judicial power which he honestly believes is conferred on him by law. |
| Section 16 | Act done pursuant to judgment or order of Court | An act done in pursuance of or warranted by a Court’s judgment/order is protected while the order remains in force, even if the Court actually had no jurisdiction, provided the person in good faith believes that the Court had jurisdiction. | “in pursuance of”; “warranted by”; “remains in force”; “no jurisdiction”; “in good faith believes” | An officer carries out a Court order which he honestly believes was passed by a Court having jurisdiction. |
| Section 17 | Act done by a person justified by law | No offence is committed where a person is justified by law in doing an act. Protection also applies where, due to a mistake of fact, he in good faith believes himself to be justified by law. | “justified by law”; “mistake of fact”; “not by reason of a mistake of law”; “in good faith” | A sees Z apparently committing murder and apprehends him, honestly believing that the law justifies the apprehension, though Z later turns out to have acted in private defence. |
FAQs on Sections 14–17 BNS — General Exceptions
1. What is Section 14 of the BNS?
Section 14 BNS provides that an act is not an offence when it is done by a person who is bound by law to do it. It also protects a person who, because of a mistake of fact and in good faith, believes himself to be bound by law to do the act.
2. What is the main principle behind Section 14?
The main principle is that a person should not be held criminally liable for doing something which he is legally required to do. The provision also recognises a genuine mistake of fact where the person, acting in good faith, believes that the law requires him to act.
3. What is the difference between mistake of fact and mistake of law under Section 14?
A mistake of fact occurs when a person is mistaken about the factual circumstances, such as the identity of a person. A mistake of law occurs when a person misunderstands what the law permits, prohibits, or requires.
Section 14 may protect a mistake of fact, but it does not protect a person merely because of a mistake of law.
4. What does “in good faith” mean under Section 14?
Good faith means that the person must genuinely and honestly believe that he is bound by law to perform the act. A person cannot deliberately create a false factual belief and then claim Section 14 as a defence.
5. Can ignorance of law be a defence under Section 14?
No. Section 14 specifically refers to a “mistake of fact and not by reason of a mistake of law.” Therefore, a person cannot ordinarily claim protection merely by saying that he did not know that his conduct was prohibited by law.
6. What is the illustration of the soldier under Section 14?
A soldier fires upon a mob pursuant to the order of his superior officer, where the order is in conformity with the commands of law. The soldier commits no offence because he is acting under a lawful command and is bound by law to obey it.
7. What is the Court-officer illustration under Section 14?
A Court officer is ordered to arrest Y. After due enquiry, he honestly believes Z to be Y and arrests Z. Although Z is later found not to be Y, the officer commits no offence because his mistake concerns a fact—the identity of the person, and he acted in good faith.
8. What is the principle of Ignorantia facti excusat?
“Ignorantia facti excusat” means “ignorance or mistake of fact is excusable.” It reflects the principle that an honest mistake concerning a relevant fact may, where the legal requirements are satisfied, protect a person from criminal liability.
9. What is the principle of Ignorantia juris non excusat?
“Ignorantia juris non excusat” means “ignorance of law is not an excuse.” A person cannot ordinarily escape criminal liability merely by claiming that he did not know the law or misunderstood the legal consequences of his conduct.
10. What does Section 15 BNS deal with?
Section 15 BNS deals with an act of a Judge when acting judicially. It provides protection when a Judge exercises a power which is given to him by law or which he in good faith believes to be given to him by law.
11. What does “acting judicially” mean under Section 15?
“Acting judicially” means that the Judge is performing a function in his judicial capacity, such as exercising judicial power, hearing a matter, or passing a judicial order. The protection relates to such judicial acts and not automatically to every act performed by a person who happens to be a Judge.
12. Does Section 15 protect every act of a Judge?
No. The protection is connected with the Judge acting judicially and exercising a power which is given to him by law or which he in good faith believes to be given to him by law. Merely holding the office of Judge is not sufficient.
13. What does Section 16 BNS deal with?
Section 16 BNS protects an act done “in pursuance of” or “warranted by” the judgment or order of a Court, provided that the judgment or order remains in force and the person doing the act in good faith believes that the Court had such jurisdiction.
14. What happens if the Court actually had no jurisdiction under Section 16?
Section 16 can still provide protection even if the Court actually had no jurisdiction to pass the judgment or order. However, the person performing the act must have in good faith believed that the Court had such jurisdiction, and the judgment or order must have remained in force when the act was done.
15. What does “in pursuance of” mean under Section 16?
“In pursuance of” means acting in accordance with or for the purpose of carrying out the judgment or order of the Court.
For example, where a Court orders an officer to seize particular property and the officer carries out that order, his act may be regarded as being done in pursuance of the Court’s order.
16. What does “remains in force” mean under Section 16?
It means that the Court’s judgment or order must still be legally operative when the person performs the act. If the order has already been set aside, cancelled, or otherwise ceased to operate, the person cannot ordinarily rely on Section 16 for an act performed after that point.
17. What is the main difference between Section 14 and Section 17?
The main difference is between “bound by law” and “justified by law.”
Section 14 deals with a person who is bound by law to do an act or believes, because of a mistake of fact, that he is so bound.
Section 17 deals with a person who is justified by law in doing an act or believes, because of a mistake of fact, that he is so justified.
In simple terms:
Section 14 = “I am required to do it.”
Section 17 = “I am legally justified in doing it.”
18. What does Section 17 BNS provide?
Section 17 BNS protects an act done by a person who is “justified by law.” It also protects a person who, because of a mistake of fact and not by reason of a mistake of law, in good faith believes himself to be justified by law in doing the act.
19. What is the illustration of Section 17?
A sees Z apparently committing murder. A, acting in good faith, uses the legal power of apprehending a person whom he believes to be a murderer and seizes Z to take him before the proper authorities.
Later, it turns out that Z was actually acting in private defence and had not committed murder.
A commits no offence because his belief was based on a mistake of fact, and he acted in good faith believing himself to be justified by law.
