law: Indian Evidence Act, 1872 
  42. Relevancy and effect of judgments, orders or decrees,
  
  other than those mentioned in section 41 
  Judgments, orders or
  
  decrees other than those mentioned in section 41, 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 favor 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