law: Indian Evidence Act, 1872 
  8. Motive, preparation and previous or subsequent conduct 
  Any fact is relevant
  
  which shows or constitutes a motive or preparation for any fact in issue or
  
  relevant fact.
  The conduct of any
  
  party, or of any agent to any party, to any suit or proceeding, in reference to
  
  such suit or proceeding, or in reference to any fact in issue therein or
  
  relevant thereto, and the conduct of any person an offence against whom is
  
  subject of any proceeding, is relevant, if such conduct influences or is
  
  influenced by any fact ins issue or relevant fact, and whether it was previous
  
  or subsequent thereto.
  Explanation 1- The work
  
  "conduct" in this section does not include statements, unless those
  
  statements accompany and explain acts other than statements, but this
  
  explanation is not to affect the relevancy of statements under any other
  
  section of this Act.
  Explanation 2— When the conduct of
  
  any person is relevant, any statement made to him or in his presence and
  
  hearing, which affects such conduct is relevant.
  Illustrations
  (a) A is tried for the
  
  murder of B.
  The facts that A
  
  murdered C, that B knew that A had murdered C, and B had tried to had extort
  
  money from A by threatening to make his knowledge public, are relevant.
  (b) A sues B upon a
  
  bond for the payment of money. B denies the making of the bond.
  the fact that, at the
  
  time when the bound was alleged to be made, B required money for a particular
  
  purpose, is relevant.
  (c) A is tried for the
  
  murder of B by poison.
  The fact that, before
  
  the death of B, A procured poison similar to that which was administered to B,
  
  is relevant.
  (d) The question is,
  
  whether a certain document is the will of A.
  The facts that, not
  
  long before the date of the alleged will, A made inquiry into matters to which
  
  the provisions of the alleged will relate that the consulted vakils in
  
  reference to making the will, and that he caused drafts or other wills to be
  
  prepared of which he did not approve, are relevant.
  (e) A is accused of a
  
  crime.
  The acts that, either
  
  before or at the time of, or after the alleged crime, A proved evidence which would
  
  tend to give to the facts of the case an appearance favorable to himself, or
  
  that he destroyed or concealed evidence, or prevented the presence or procured
  
  the absence of persons who might have been witnesses, or suborned persons to
  
  give false evidence respecting it, are relevant.
  (f) The question is,
  
  whether A robbed B.
  The facts that, after
  
  B was robbed, C said in and A’s presence- "the police are coming to look
  
  for the man who robbed B." and that immediately afterwards A ran away, are
  
  relevant.
  (g) The question is,
  
  whether A owes B rupees 10,000.
  The facts that A asked
  
  C to lend him money, and that D said to C in A’s presence and hearing- "I
  
  advise you not to trust A, for he B 10,000 rupees," and that A went away
  
  without making any answer, are relevant facts.
  (h) The question is,
  
  whether A committed a crime.
  The fact that A
  
  absconded after receiving a letter warning him that inquiry was being made for
  
  the criminal and the contents of the letter, are relevant.
  (i) A is accused of a
  
  crime.
  The facts that, after
  
  the commission of the alleged crime, he absconded, or was in possession of
  
  property of the proceeds of property acquired by the crime, or attempted to
  
  conceal things which were or might have been used in committing if, are
  
  relevant.
  (j) The question is,
  
  whether A was ravished.
  The facts that,
  
  shortly after the alleged rape, she made a complaint relating to the crime, the
  
  circumstances under which, and the terms in which, the complaint was made, are
  
  relevant.
  The fact that,
  
  without, making a complaint, she said that she had been ravished is not
  
  relevant as conduct under this section, though it may be relevant.
  as a dying declaration
  
  under section 32, clause (1), or
  as corroborative
  
  evidence under section 157.
  (k) The question is, whether
  
  A was robbed.
  The fact that, soon
  
  after the alleged robbery, he made a complaint relating to the offence, the
  
  circumstances under which, and the terms in which the complaint was made, are
  
  relevant.
  The fact that he said he
  
  had been robbed, without making any complaint, is not relevant as conduct under
  
  this section, though it may be relevant.
  as a dying declaration
  
  under section 32, clause (1), or
  as corroborative
  
  evidence under section 157.