law: Code of Criminal Procedure Act, 1973
  70.Form of warrant of arrest and duration.-
  (1) Every warrant of arrest issued by a Court
  
  under this Code shall be in writing, signed by the presiding officer of such
  
  Court and shall bear the seal of the Court.
  (2) Every such warrant shall remain in force until it is cancelled by the Court
  
  which issued it, or until it is executed.