law: Drugs and Cosmetics Act, 1940
  4. Presumption as to poisonous substances
  Any substance specified as poisonous by rule made under Chapter
  
  II or Chapter IV 33[or Chapter IVA] shall be deemed to be a
  
  poisonous substance for the purposes of Chapter III or Chapter IV 33[or
  
  Chapter IVA], as the case may be.