YES, both are allowed in Cr.P.C., but procedure to obtain those things differs. When a District Magistrate, Chief Judicial Magistrate, Sessions Court or High Court requires Postal or Telegraph Authority to deliver document, parcel or thing for trial, inquiry or investigation or for any other purpose and those document, parcel or thing are believed to be in the possession of the Postal or Telegraph Authority and it is expected of them to deliver to the Magistrate or the Court or to the directed person.

Provided the Magistrate – Executive or Judicial, SP or Commissioner of Police requires document, parcel or thing for the purpose of investigation, trial or inquiry from the Postal Department or Authority, the authority may cause search by detailing out the documents or things looking from the Postal or Telegraph Authority pending the order of a District Magistrate, Chief Judicial Magistrate or Court under sub-section (1).