2.—(1) Part 2 provides for benefits to be payable in relation to service as an officer (as defined in that Part).
(2) Part 3 provides for benefits to be payable in relation to service as—
(a)a practitioner, or
(b)an OOH provider,
(both as defined in that Part).
(3) Part 4 modifies Parts 2 and 3 where a member has pensionable service under both Parts 2 and 3.