Narcotic Drugs and Psychotropic Substances Act, 1985
66. Presumption as to documents in
certain cases.
Where any document-
(i) is produced or furnished by any person or has been seized
from the custody or control or any person, in either case, under this Act or
under any other law, or
(ii) has been received from any place outside India (duly
authenticated by such authority or person and in such manner as may be
prescribed by the Central Government) in the course of investigation of any
offence under this Act alleged to have been committed by a person, and such
document is tendered in any prosecution under this Act in evidence against him,
or against him and any other person who is tried jointly with him, the court
shall-
(a) presume, unless the contrary is proved,
that the signature and every other part of such document which purports to be
in the handwriting of any particular person or which the court may reasonably
assume to have been signed by, or to be in the handwriting of, any particular
person, is in that person's handwriting; and in the case of a document executed
or attested, that it was executed or attested by the person by whom it purports
to have been so executed or attested;
(b) admit the document in evidence,
notwithstanding that it is not duly stamped, if such document is otherwise
admissible in evidence;
(c) in a case falling under clause (i), also
presume, unless the contrary is proved, the truth of the contents of such
document.