Code of Criminal Procedure Act, 1973
292.Evidence of the officers of the Mint.-
(1) Any document purporting to be a report under the hand of any such gazetted officer of the Mint or of the India Security Press (including the office of the Controller of Stamps and Stationery) as the Central Government may, by notification, specify in this behalf, upon any matter or thing duly submitted to him for examination and report in the course of any proceeding under this Code, may be used as evidence in any inquiry, trial or other proceeding under this Code, although such officer is not called as a witness.
(2) The Court may, if it thinks fit, summon and examine any such officer as to the subject-matter of his report:
Provided that no such officer shall be summoned to produce any records on which the report is based.
(3) Without prejudice to the provisions of sections 123 and 124 of the Indian Evidence Act, 1872, (1 of 1872) no such officer shall, except with the permission of the Master of the Mint or the India Security Press or the Controller of Stamps and Stationery, as the case may be, be permitted –
(a) to give any evidence derived from any unpublished official records on which the report is based; or
(b) to disclose the nature or particulars of any test applied by him in the course of the examination of the matter or thing.