law: Indian Evidence Act, 1872 
  15. Facts bearing on question whether act was accidental
  
  or intentional
  When there is a question
  
  whether an act was accidental or intentional, 14[ or done with a
  
  particular knowledge or intention,] the fact that such act formed part of a
  
  series of similar occurrences, in each of which the person doing the act was
  
  concerned, is relevant.
  Illustration
  (a) A is accused of
  
  burning down his house in order to obtain money for which it is insured.
  The facts that a lived
  
  in several houses successively, each of which he insured, in each of which a
  
  fire occurred, and after each of which fires. A received payment from a
  
  different insurance office, are relevant, as tending to show that the fires
  
  were not accidental.
  (b) A is employed to
  
  receive money from the debtors, of B. It is A’s duty to make entries in a book
  
  showing the amounts received by him. He makes an entry showing that on a
  
  particular occasion he received less than he really did receive.
  The question is,
  
  whether this false entry was accidental or intentional.
  The facts that other
  
  entries made by A in the same book are false, and that the false entry is in
  
  each case in favor of A, relevant.
  (c) A is accused of
  
  fraudulently delivering to B a counterfeit rupee.
  The question is,
  
  whether the delivery of the rupee was accidental.
  The facts that, soon
  
  before or soon after the delivery to B, A delivered counterfeit rupees to C, D
  
  and E are relevant, as showing that the delivery to B was not accidental.