Section 66 of the Narcotic Drugs and Psychotropic Substances Act, 1985 applies to documents that are:

Clause (i) of section 66 NDPS Act covers a document that "is produced or furnished by any person or has been seized from the custody or control of any person, in either case, under this Act or under any other law". It is not limited to papers written by the accused, and a document from abroad qualifies under clause (ii) only if duly authenticated.