Narcotic Drugs and Psychotropic Substances Act, 1985
67. Power to call for information, etc.
Any officer referred to in section 42 who is authorized in this
behalf by the Central Government or a State Government may, during the course
of any enquiry in connection with the contravention of any provision of this
Act,-
(a) call for information from any person for the purpose of
satisfying himself whether there has been any contravention of the provisions
of this Act or any rule or order made thereunder;
(b) require any person to produce or deliver any document or
thing useful or relevant to the enquiry;
(c) examine any person acquainted with the facts and
circumstances of the case.