law: The Motor Vehicles Act, 1988
  202. Power  to arrest  
  
  without warrant.
  Provided that  any person 
  
   so  arrested  in  connection  with  an offence punishable  under section  185  
  
  shall,  within two hours of his arrest, be  subjected to a medical examination 
  
  referred to in sections 203 and  204 by  a registered  medical practitioner  
  
  failing which  he shall be released from custody.