90.—(1) Where a police officer has left the police service and joined a police force in Great Britain and the police authority of the police force in question is contingently liable to make payments to him under the pensions legislation of Great Britain, regulation 73 shall have effect.
(2) In relation to a person to whom an ill-health pension is payable under Part 4, regulation 73(5) shall have effect as if the expression “the police service” included a police force in Great Britain.
(3) In relation to a person to whom a pension is payable under Part 4, regulation 74 shall have effect as if the expression “the police service” included a police force in Great Britain.