law: Indian Boilers Act, 1923 
  15. Production of certificates, etc. 
  The owner of any boiler who holds a certificate or provisional
  
  order relating thereto shall, at all reasonable times during the period for
  
  which the certificate or order is in force be bound to produce the same when
  
  called upon to do so by a District Magistrate, Commissioner of Police or
  
  Magistrate of the first class having jurisdiction in the area in which the
  
  boiler is for the time being or by the Chief Inspector or by an Inspector or by
  
  any Inspector appointed under the Indian Factories Act, 191135, or
  
  by any person specially authorized in writing by a District Magistrate or
  
  Commissioner of Police.