Narcotic Drugs and Psychotropic Substances Act, 1985
The competent authority and the Appellate Tribunal shall have all the powers of a civil court while trying a suit under the Code of Civil Procedure, 1908, in respect of the following matters, namely:-
(a) summoning and enforcing the attendance of any person and examining him on oath;
(b) requiring the discovery and production of documents;
(c) receiving evidence on affidavits;
(d) requisitioning any public record or copy thereof from any court or office;
(e) issuing commissions for examination of witnesses or documents;
(f) any other matter which may be prescribed.