Retention and safe keeping of motor vehicles
3.—(1) A relevant motor vehicle shall be passed into and remain in the custody of a constable or other person authorised under this regulation by the Chief Constable (“the authorised person”) until—
(a)the authorised person permits it to be removed from his custody by a person appearing to him to be the registered keeper or owner of the vehicle; or
(b)it has been disposed of under these Regulations.
(2) While the vehicle is in the custody of the authorised person, the authorised person shall be under a duty to take such steps as are reasonably necessary for its safe keeping.