12.—(1) The charging scheme shall provide that where a vehicle has been removed and delivered to the custodian, in accordance with regulation 10(4), the custodian may recover (without prejudicing the charging authority’s rights to recover such amounts in full from those persons liable, pursuant to regulation 5) from the person who was the registered keeper of the vehicle when the vehicle was removed, the penalty charges prescribed by the scheme for–
(a)its removal in accordance with regulation 10;
(b)its storage and release from storage; and
(c)if the vehicle has been disposed of, its sale or destruction.
(2) Where, by virtue of paragraphs (1)(a) and (b), any sum is recoverable in respect of a vehicle, the custodian shall be entitled to retain custody of it until that sum is paid.