Section 108(7) in The Indo-Tibetan Border Police Force Act, 1992
(7)(a)Any document purporting to be a report under the hand of a Government scientific expert to whom this sub-section applies, upon any matter or thing duly submitted to him for examination or analysis and report in the course of any proceeding under this Act, may be used as evidence in any inquiry, trial or other proceeding under this Act.(b)The Force Court may, if it thinks fit, summon and examine any such expert as to the subject-matter of his report.(c)Where any such expert is summoned by a Force Court and he is unable to attend personally, he may, unless the Court has expressly directed him to appear personally, depute an officer who is conversant with the facts of the case to depose in the Court on his behalf.(d)This sub-section applies to the Government scientific experts, for the time being specified in sub-section (4) of section 293 of the Code of Criminal Procedure, 1973 (2 of 1974).