Section 198(4) in The Code of Criminal Procedure, 1973
(4)The authorisation referred to in clause (b) of the proviso to sub-section (1), shall be in writing, shall be signed or otherwise attested by the husband, shall contain a statement to the effect that he has been informed of the allegations upon which the complaint is to be founded, shall be countersigned by his Commanding Officer, and shall be accompanied by a certificate signed by that Officer to the effect that leave of absence for the purpose of making a complaint in person cannot for the time being be granted to the husband.