The Bharatiya Sakshya Adhiniyam, 2023
Administered Ministry: Ministry of Home Affairs / Department of Internal Security
Section
Section 21 Admissions in civil cases when relevant.
In civil cases no admission is relevant, if it is made either upon an express condition that evidence of it is not to be given, or under circumstances from which the Court can infer that the parties agreed together that evidence of it should not be given.
Explanation.--Nothing in this section shall be taken to exempt any advocate from giving evidence of any matter of which he may be compelled to give evidence under sub-sections (1) and (2) of section 132.
Explanation.--Nothing in this section shall be taken to exempt any advocate from giving evidence of any matter of which he may be compelled to give evidence under sub-sections (1) and (2) of section 132.
Section 22 Confession caused by inducement, threat, coercion or promise, when irrelevant in criminal proceeding.
A confession made by an accused person is irrelevant in a criminal proceeding, if the making of the confession appears to the Court to have been caused by any inducement, threat, coercion or promise having reference to the charge against the accused person, proceeding from a person in authority and sufficient, in the opinion of the Court, to give the accused person grounds which would appear to him reasonable for supposing that by making it he would gain any advantage or avoid any evil of a temporal nature in reference to the proceedings against him:
Provided that if the confession is made after the impression caused by any such inducement, threat, coercion or promise has, in the opinion of the Court, been fully removed, it is relevant:
Provided further that if such a confession is otherwise relevant, it does not become irrelevant merely because it was made under a promise of secrecy, or in consequence of a deception practised on the accused person for the purpose of obtaining it, or when he was drunk, or because it was made in answer to questions which he need not have answered, whatever may have been the form of those questions, or because he was not warned that he was not bound to make such confession, and that evidence of it might be given against him.
Provided that if the confession is made after the impression caused by any such inducement, threat, coercion or promise has, in the opinion of the Court, been fully removed, it is relevant:
Provided further that if such a confession is otherwise relevant, it does not become irrelevant merely because it was made under a promise of secrecy, or in consequence of a deception practised on the accused person for the purpose of obtaining it, or when he was drunk, or because it was made in answer to questions which he need not have answered, whatever may have been the form of those questions, or because he was not warned that he was not bound to make such confession, and that evidence of it might be given against him.
Section 23 Confession to police officer.
(1) No confession made to a police officer shall be proved as against a person accused of any offence
(2) No confession made by any person while he is in the custody of a police officer, unless it is made in the immediate presence of a Magistrate shall be proved against him:
Provided that when any fact is deposed to as discovered in consequence of information received from a person accused of any offence, in the custody of a police officer, so much of such information, whether it amounts to a confession or not, as relates distinctly to the fact discovered, may be proved.
(2) No confession made by any person while he is in the custody of a police officer, unless it is made in the immediate presence of a Magistrate shall be proved against him:
Provided that when any fact is deposed to as discovered in consequence of information received from a person accused of any offence, in the custody of a police officer, so much of such information, whether it amounts to a confession or not, as relates distinctly to the fact discovered, may be proved.
Section 24 Consideration of proved confession affecting person making it and others jointly under trial for same offence.
When more persons than one are being tried jointly for the same offence, and a confession made by one of such persons affecting himself and some other of such persons is proved, the Court may take into consideration such confession as against such other person as well as against the person who makes such confession.
Explanation I.--"Offence", as used in this section, includes the abetment of, or attempt to commit, the offence.
Explanation II.--A trial of more persons than one held in the absence of the accused who has absconded or who fails to comply with a proclamation issued under section 84 of the Bharatiya Nagarik Suraksha Sanhita, 2023 shall be deemed to be a joint trial for the purpose of this section
Illustrations.
(a) A and B are jointly tried for the murder of C. It is proved that A said--"B and I murdered C". The Court may consider the effect of this confession as against B.
(b) A is on his trial for the murder of C. There is evidence to show that C was murdered by A and B, and that B said-- "A and I murdered C". This statement may not be taken into consideration by the Court against A, as B is not being jointly tried.
Explanation I.--"Offence", as used in this section, includes the abetment of, or attempt to commit, the offence.
Explanation II.--A trial of more persons than one held in the absence of the accused who has absconded or who fails to comply with a proclamation issued under section 84 of the Bharatiya Nagarik Suraksha Sanhita, 2023 shall be deemed to be a joint trial for the purpose of this section
Illustrations.
(a) A and B are jointly tried for the murder of C. It is proved that A said--"B and I murdered C". The Court may consider the effect of this confession as against B.
(b) A is on his trial for the murder of C. There is evidence to show that C was murdered by A and B, and that B said-- "A and I murdered C". This statement may not be taken into consideration by the Court against A, as B is not being jointly tried.
Section 25 Admissions not conclusive proof, but may estop.
Admissions are not conclusive proof of the matters admitted but they may operate as estoppels under the provisions hereinafter contained.
Section 26 Cases in which statement of relevant fact by person who is dead or cannot be found, etc., is relevant.
Statements, written or verbal, of relevant facts made by a person who is dead, or who cannot be found, or who has become incapable of giving evidence, or whose attendance cannot be procured without an amount of delay or expense which under the circumstances of the case appears to the Court unreasonable, are themselves relevant facts in the following cases, namely:--
(a) when the statement is made by a person as to the cause of his death, or as to any of the circumstances of the transaction which resulted in his death, in cases in which the cause of that person's death comes into question. Such statements are relevant whether the person who made them was or was not, at the time when they were made, under expectation of death, and whatever may be the nature of the proceeding in which the cause of his death comes into question;
(b) when the statement was made by such person in the ordinary course of business, and in particular when it consists of any entry or memorandum made by him in books kept in the ordinary course of business, or in the discharge of professional duty; or of an acknowledgement written or signed by him of the receipt of money, goods, securities or property of any kind; or of a document used in commerce written or signed by him; or of the date of a letter or other document usually dated, written or signed by him;
(c) when the statement is against the pecuniary or proprietary interest of the person making it, or when, if true, it would expose him or would have exposed him to a criminal prosecution or to a suit for damages;
(d) when the statement gives the opinion of any such person, as to the existence of any public right or custom or matter of public or general interest, of the existence of which, if it existed, he would have been likely to be aware, and when such statement was made before any controversy as to such right, custom or matter had arisen;
(e) when the statement relates to the existence of any relationship by blood, marriage or adoption between persons as to whose relationship by blood, marriage or adoption the person making the statement had special means of knowledge, and when the statement was made before the question in dispute was raised;
(f) when the statement relates to the existence of any relationship by blood, marriage or adoption between persons deceased, and is made in any will or deed relating to the affairs of the family to which any such deceased person belonged, or in any family pedigree, or upon any tombstone, family portrait or other thing on which such statements are usually made, and when such statement was made before the question in dispute was raised;
(g) when the statement is contained in any deed, will or other document which relates to any such transaction as is specified in clause (a) of section 11;
(h) when the statement was made by a number of persons, and expressed feelings or impressions on their part relevant to the matter in question.
Illustrations.
(a) The question is, whether A was murdered by B; or A dies of injuries received in a transaction in the course of which she was raped. The question is whether she was raped by B; or the question is, whether A was killed by B under such circumstances that a suit would lie against B by A's widow. Statements made by A as to the cause of his or her death, referring respectively to the murder, the rape and the actionable wrong under consideration, are relevant facts.
(b) The question is as to the date of A's birth. An entry in the diary of a deceased surgeon regularly kept in the course of business, stating that, on a given day he attended A's mother and delivered her of a son, is a relevant fact.
(c) The question is, whether A was in Nagpur on a given day. A statement in the diary of a deceased solicitor, regularly kept in the course of business, that on a given day the solicitor attended A at a place mentioned, in Nagpur, for the purpose of conferring with him upon specified business, is a relevant fact.
(d) The question is, whether a ship sailed from Mumbai harbour on a given day. A letter written by a deceased member of a merchant's firm by which she was chartered to their correspondents in Chennai, to whom the cargo was consigned, stating that the ship sailed on a given day from Mumbai port, is a relevant fact.
(e) The question is, whether rent was paid to A for certain land. A letter from A's deceased agent to A, saying that he had received the rent on A's account and held it at A's orders is a relevant fact.
(f) The question is, whether A and B were legally married. The statement of a deceased clergyman that he married them under such circumstances that the celebration would be a crime is relevant.
(g) The question is, whether A, a person who cannot be found, wrote a letter on a certain day. The fact that a letter written by him is dated on that day is relevant.
(h) The question is, what was the cause of the wreck of a ship. A protest made by the captain, whose attendance cannot be procured, is a relevant fact.
(i) The question is, whether a given road is a public way. A statement by A, a deceased headman of the village, that the road was public, is a relevant fact.
(j) The question is, what was the price of grain on a certain day in a particular market. A statement of the price, made by a deceased business person in the ordinary course of his business, is a relevant fact.
(k) The question is, whether A, who is dead, was the father of B. A statement by A that B was his son, is a relevant fact.
(l) The question is, what was the date of the birth of A. A letter from A's deceased father to a friend, announcing the birth of A on a given day, is a relevant fact.
(m) The question is, whether, and when, A and B were married. An entry in a memorandum book by C, the deceased father of B, of his daughter's marriage with A on a given date, is a relevant fact.
(n) A sues B for a libel expressed in a painted caricature exposed in a shop window. The question is as to the similarity of the caricature and its libellous character. The remarks of a crowd of spectators on these points may be proved.
(a) when the statement is made by a person as to the cause of his death, or as to any of the circumstances of the transaction which resulted in his death, in cases in which the cause of that person's death comes into question. Such statements are relevant whether the person who made them was or was not, at the time when they were made, under expectation of death, and whatever may be the nature of the proceeding in which the cause of his death comes into question;
(b) when the statement was made by such person in the ordinary course of business, and in particular when it consists of any entry or memorandum made by him in books kept in the ordinary course of business, or in the discharge of professional duty; or of an acknowledgement written or signed by him of the receipt of money, goods, securities or property of any kind; or of a document used in commerce written or signed by him; or of the date of a letter or other document usually dated, written or signed by him;
(c) when the statement is against the pecuniary or proprietary interest of the person making it, or when, if true, it would expose him or would have exposed him to a criminal prosecution or to a suit for damages;
(d) when the statement gives the opinion of any such person, as to the existence of any public right or custom or matter of public or general interest, of the existence of which, if it existed, he would have been likely to be aware, and when such statement was made before any controversy as to such right, custom or matter had arisen;
(e) when the statement relates to the existence of any relationship by blood, marriage or adoption between persons as to whose relationship by blood, marriage or adoption the person making the statement had special means of knowledge, and when the statement was made before the question in dispute was raised;
(f) when the statement relates to the existence of any relationship by blood, marriage or adoption between persons deceased, and is made in any will or deed relating to the affairs of the family to which any such deceased person belonged, or in any family pedigree, or upon any tombstone, family portrait or other thing on which such statements are usually made, and when such statement was made before the question in dispute was raised;
(g) when the statement is contained in any deed, will or other document which relates to any such transaction as is specified in clause (a) of section 11;
(h) when the statement was made by a number of persons, and expressed feelings or impressions on their part relevant to the matter in question.
(a) The question is, whether A was murdered by B; or A dies of injuries received in a transaction in the course of which she was raped. The question is whether she was raped by B; or the question is, whether A was killed by B under such circumstances that a suit would lie against B by A's widow. Statements made by A as to the cause of his or her death, referring respectively to the murder, the rape and the actionable wrong under consideration, are relevant facts.
(b) The question is as to the date of A's birth. An entry in the diary of a deceased surgeon regularly kept in the course of business, stating that, on a given day he attended A's mother and delivered her of a son, is a relevant fact.
(c) The question is, whether A was in Nagpur on a given day. A statement in the diary of a deceased solicitor, regularly kept in the course of business, that on a given day the solicitor attended A at a place mentioned, in Nagpur, for the purpose of conferring with him upon specified business, is a relevant fact.
(d) The question is, whether a ship sailed from Mumbai harbour on a given day. A letter written by a deceased member of a merchant's firm by which she was chartered to their correspondents in Chennai, to whom the cargo was consigned, stating that the ship sailed on a given day from Mumbai port, is a relevant fact.
(e) The question is, whether rent was paid to A for certain land. A letter from A's deceased agent to A, saying that he had received the rent on A's account and held it at A's orders is a relevant fact.
(f) The question is, whether A and B were legally married. The statement of a deceased clergyman that he married them under such circumstances that the celebration would be a crime is relevant.
(g) The question is, whether A, a person who cannot be found, wrote a letter on a certain day. The fact that a letter written by him is dated on that day is relevant.
(h) The question is, what was the cause of the wreck of a ship. A protest made by the captain, whose attendance cannot be procured, is a relevant fact.
(i) The question is, whether a given road is a public way. A statement by A, a deceased headman of the village, that the road was public, is a relevant fact.
(j) The question is, what was the price of grain on a certain day in a particular market. A statement of the price, made by a deceased business person in the ordinary course of his business, is a relevant fact.
(k) The question is, whether A, who is dead, was the father of B. A statement by A that B was his son, is a relevant fact.
(l) The question is, what was the date of the birth of A. A letter from A's deceased father to a friend, announcing the birth of A on a given day, is a relevant fact.
(m) The question is, whether, and when, A and B were married. An entry in a memorandum book by C, the deceased father of B, of his daughter's marriage with A on a given date, is a relevant fact.
(n) A sues B for a libel expressed in a painted caricature exposed in a shop window. The question is as to the similarity of the caricature and its libellous character. The remarks of a crowd of spectators on these points may be proved.
Section 27 Relevancy of certain evidence for proving, in subsequent proceeding, truth of facts therein stated.
Evidence given by a witness in a judicial proceeding, or before any person authorised by law to take it, is relevant for the purpose of proving, in a subsequent judicial proceeding, or in a later stage of the same judicial proceeding, the truth of the facts which it states, when the witness is dead or cannot be found, or is incapable of giving evidence, or is kept out of the way by the adverse party, or if his presence cannot be obtained without an amount of delay or expense which, under the circumstances of the case, the Court considers unreasonable:
Provided that the proceeding was between the same parties or their representatives in interest; that the adverse party in the first proceeding had the right and opportunity to cross-examine and the questions in issue were substantially the same in the first as in the second proceeding.
Explanation.--A criminal trial or inquiry shall be deemed to be a proceeding between the prosecutor and the accused within the meaning of this section.
Provided that the proceeding was between the same parties or their representatives in interest; that the adverse party in the first proceeding had the right and opportunity to cross-examine and the questions in issue were substantially the same in the first as in the second proceeding.
Explanation.--A criminal trial or inquiry shall be deemed to be a proceeding between the prosecutor and the accused within the meaning of this section.
Section 28 Entries in books of account when relevant.
Entries in the books of account, including those maintained in an electronic form, regularly kept in the course of business are relevant whenever they refer to a matter into which the Court has to inquire, but such statements shall not alone be sufficient evidence to charge any person with liability.
Illustration
A sues B for one thousand rupees, and shows entries in his account books showing B to be indebted to him to this amount. The entries are relevant, but are not sufficient, without other evidence, to prove the debt.
Illustration
A sues B for one thousand rupees, and shows entries in his account books showing B to be indebted to him to this amount. The entries are relevant, but are not sufficient, without other evidence, to prove the debt.
Section 29 Relevancy of entry in public record or an electronic record made in performance of duty.
An entry in any public or other official book, register or record or an electronic record, stating a fact in issue or relevant fact, and made by a public servant in the discharge of his official duty, or by any other person in performance of a duty specially enjoined by the law of the country in which such book, register or record or an electronic record, is kept, is itself a relevant fact.
Section 30 Relevancy of statements in maps, charts and plans.
Statements of facts in issue or relevant facts, made in published maps or charts generally offered for public sale, or in maps or plans made under the authority of the Central Government or any State Government, as to matters usually represented or stated in such maps, charts or plans, are themselves relevant facts
Section 31 Relevancy of statement as to fact of public nature contained in certain Acts or notifications.
When the Court has to form an opinion as to the existence of any fact of a public nature, any statement of it, made in a recital contained in any Central Act or State Act or in a Central Government or State Government notification appearing in the respective Official Gazette or in any printed paper or in electronic or digital form purporting to be such Gazette, is a relevant fact.
Section 32 Relevancy of statements as to any law contained in law books including electronic or digital form.
When the Court has to form an opinion as to a law of any country, any statement of such law contained in a book purporting to be printed or published including in electronic or digital form under the authority of the Government of such country and to contain any such law, and any report of a ruling of the Courts of such country contained in a book including in electronic or digital form purporting to be a report of such rulings, is relevant.
Section 33 What evidence to be given when statement forms part of a conversation, document, electronic record, book or series of letters or papers.
When any statement of which evidence is given forms part of a longer statement, or of a conversation or part of an isolated document, or is contained in a document which forms part of a book, or is contained in part of electronic record or of a connected series of letters or papers, evidence shall be given of so much and no more of the statement, conversation, document, electronic record, book or series of letters or papers as the Court considers necessary in that particular case to the full understanding of the nature and effect of the statement, and of the circumstances under which it was made.
Section 34 Previous judgments relevant to bar a second suit or trial.
The existence of any judgment, order or decree which by law prevents any Court from taking cognizance of a suit or holding a trial, is a relevant fact when the question is whether such Court ought to take cognizance of such suit or to hold such trial.
Section 35 Relevancy of certain judgments in probate, etc., jurisdiction.
(1) A final judgment, order or decree of a competent Court or Tribunal, in the exercise of probate, matrimonial, admiralty or insolvency jurisdiction, which confers upon or takes away from any person any legal character, or which declares any person to be entitled to any such character, or to be entitled to any specific thing, not as against any specified person but absolutely, is relevant when the existence of any such legal character, or the title of any such person to any such thing, is relevant.
(2) Such judgment, order or decree is conclusive proof that--
(i) any legal character, which it confers accrued at the time when such judgment, order or decree came into operation;
(ii) any legal character, to which it declares any such person to be entitled, accrued to that person at the time when such judgment, order or decree declares it to have accrued to that person;
(iii) any legal character which it takes away from any such person ceased at the time from which such judgment, order or decree declared that it had ceased or should cease; and
(iv) anything to which it declares any person to be so entitled was the property of that person at the time from which such judgment, order or decree declares that it had been or should be his property.
(2) Such judgment, order or decree is conclusive proof that--
(i) any legal character, which it confers accrued at the time when such judgment, order or decree came into operation;
(ii) any legal character, to which it declares any such person to be entitled, accrued to that person at the time when such judgment, order or decree declares it to have accrued to that person;
(iii) any legal character which it takes away from any such person ceased at the time from which such judgment, order or decree declared that it had ceased or should cease; and
(iv) anything to which it declares any person to be so entitled was the property of that person at the time from which such judgment, order or decree declares that it had been or should be his property.
Section 36 Relevancy and effect of judgments, orders or decrees, other than those mentioned in section 35.
Judgments, orders or decrees other than those mentioned in section 35 are relevant if they relate to matters of a public nature relevant to the enquiry; but such judgments, orders or decrees are not conclusive proof of that which they state.
Illustration.
A sues B for trespass on his land. B alleges the existence of a public right of way over the land, which A denies. The existence of a decree in favour of the defendant, in a suit by A against C for a trespass on the same land, in which C alleged the existence of the same right of way, is relevant, but it is not conclusive proof that the right of way exists.
Illustration.
A sues B for trespass on his land. B alleges the existence of a public right of way over the land, which A denies. The existence of a decree in favour of the defendant, in a suit by A against C for a trespass on the same land, in which C alleged the existence of the same right of way, is relevant, but it is not conclusive proof that the right of way exists.
Section 37 Judgments, etc., other than those mentioned in sections 34, 35 and 36 when relevant.
Judgments or orders or decrees, other than those mentioned in sections 34, 35 and 36, are irrelevant, unless the existence of such judgment, order or decree is a fact in issue, or is relevant under some other provision of this Adhiniyam.
Illustrations.
(a) A and B separately sue C for a libel which reflects upon each of them. C in each case says that the matter alleged to be libellous is true, and the circumstances are such that it is probably true in each case, or in neither. A obtains a decree against C for damages on the ground that C failed to make out his justification. The fact is irrelevant as between B and C.
(b) A prosecutes B for stealing a cow from him. B is convicted. A afterwards sues C for the cow, which B had sold to him before his conviction. As between A and C, the judgment against B is irrelevant.
(c) A has obtained a decree for the possession of land against B. C, B's son, murders A in consequence. The existence of the judgment is relevant, as showing motive for a crime.
(d) A is charged with theft and with having been previously convicted of theft. The previous conviction is relevant as a fact in issue.
(e) A is tried for the murder of B. The fact that B prosecuted A for libel and that A was convicted and sentenced is relevant under section 6 as showing the motive for the fact in issue.
Illustrations.
(a) A and B separately sue C for a libel which reflects upon each of them. C in each case says that the matter alleged to be libellous is true, and the circumstances are such that it is probably true in each case, or in neither. A obtains a decree against C for damages on the ground that C failed to make out his justification. The fact is irrelevant as between B and C.
(b) A prosecutes B for stealing a cow from him. B is convicted. A afterwards sues C for the cow, which B had sold to him before his conviction. As between A and C, the judgment against B is irrelevant.
(c) A has obtained a decree for the possession of land against B. C, B's son, murders A in consequence. The existence of the judgment is relevant, as showing motive for a crime.
(d) A is charged with theft and with having been previously convicted of theft. The previous conviction is relevant as a fact in issue.
(e) A is tried for the murder of B. The fact that B prosecuted A for libel and that A was convicted and sentenced is relevant under section 6 as showing the motive for the fact in issue.
Section 38 Fraud or collusion in obtaining judgment, or incompetency of Court, may be proved.
Any party to a suit or other proceeding may show that any judgment, order or decree which is relevant under section 34, 35 or 36, and which has been proved by the adverse party, was delivered by a Court not competent to deliver it, or was obtained by fraud or collusion.
Section 39 Opinions of experts.
(1) When the Court has to form an opinion upon a point of foreign law or of science or art, or any other field, or as to identity of handwriting or finger impressions, the opinions upon that point of persons specially skilled in such foreign law, science or art, or any other field, or in questions as to identity of handwriting or finger impressions are relevant facts and such persons are called experts.
Illustrations.
(a) The question is, whether the death of A was caused by poison. The opinions of experts as to the symptoms produced by the poison by which A is supposed to have died, are relevant.
(b) The question is, whether A, at the time of doing a certain act, was, by reason of unsoundness of mind, incapable of knowing the nature of the act, or that he was doing what was either wrong or contrary to law. The opinions of experts upon the question whether the symptoms exhibited by A commonly show unsoundness of mind, and whether such unsoundness of mind usually renders persons incapable of knowing the nature of the acts which they do, or of knowing that what they do is either wrong or contrary to law, are relevant.
(c) The question is, whether a certain document was written by A. Another document is produced which is proved or admitted to have been written by A. The opinions of experts on the question whether the two documents were written by the same person or by different persons, are relevant.
(2) When in a proceeding, the court has to form an opinion on any matter relating to any information transmitted or stored in any computer resource or any other electronic or digital form, the opinion of the Examiner of Electronic Evidence referred to in section 79A of the Information Technology Act, 2000 (21 of 2000), is a relevant fact.
Explanation.--For the purposes of this sub-section, an Examiner of Electronic Evidence shall be an expert.
Illustrations.
(a) The question is, whether the death of A was caused by poison. The opinions of experts as to the symptoms produced by the poison by which A is supposed to have died, are relevant.
(b) The question is, whether A, at the time of doing a certain act, was, by reason of unsoundness of mind, incapable of knowing the nature of the act, or that he was doing what was either wrong or contrary to law. The opinions of experts upon the question whether the symptoms exhibited by A commonly show unsoundness of mind, and whether such unsoundness of mind usually renders persons incapable of knowing the nature of the acts which they do, or of knowing that what they do is either wrong or contrary to law, are relevant.
(c) The question is, whether a certain document was written by A. Another document is produced which is proved or admitted to have been written by A. The opinions of experts on the question whether the two documents were written by the same person or by different persons, are relevant.
(2) When in a proceeding, the court has to form an opinion on any matter relating to any information transmitted or stored in any computer resource or any other electronic or digital form, the opinion of the Examiner of Electronic Evidence referred to in section 79A of the Information Technology Act, 2000 (21 of 2000), is a relevant fact.
Explanation.--For the purposes of this sub-section, an Examiner of Electronic Evidence shall be an expert.
Section 40 Facts bearing upon opinions of experts.
Facts, not otherwise relevant, are relevant if they support or are inconsistent with the opinions of experts, when such opinions are relevant.
Illustrations.
(a) The question is, whether A was poisoned by a certain poison. The fact that other persons, who were poisoned by that poison, exhibited certain symptoms which experts affirm or deny to be the symptoms of that poison, is relevant.
(b) The question is, whether an obstruction to a harbour is caused by a certain sea-wall. The fact that other harbours similarly situated in other respects, but where there were no such sea-walls, began to be obstructed at about the same time, is relevant.
Illustrations.
(a) The question is, whether A was poisoned by a certain poison. The fact that other persons, who were poisoned by that poison, exhibited certain symptoms which experts affirm or deny to be the symptoms of that poison, is relevant.
(b) The question is, whether an obstruction to a harbour is caused by a certain sea-wall. The fact that other harbours similarly situated in other respects, but where there were no such sea-walls, began to be obstructed at about the same time, is relevant.