Section 691(b) in Police Regulations, Bengal , 1943
(b)If the District Magistrate so desires, a guard of one head constable and six constables shall accompany him on the occasion of his visits to the interior. Such a force is intended as a guard of honour for the chief executive officer of a district, as well as for Court purposes and the custody of undertrial prisoners, and no special sanction is necessary. A similar guard shall be supplied to the Divisional Commissioner when on tour at a district or Sub-divisional headquarters. At other places no guard shall be supplied unless he desires it. Intimation of the Commissioner's desire for a guard will be sent by him to the Superintendent in sufficient time to allow for the deputation of the guard.