A claim under section 46 must be made in the manner and within the period prescribed by regulations.

Regulations may prescribe different periods for different cases or classes of cases or for different circumstances.

Regulations may in particular provide that no claim may be made in cases where the prescribed period expired before the commencement of section 46 (or would have done but for any discretion to extend it).

The Secretary of State may, before determining any claim under section 46, appoint a person to inquire into any question arising on the claim, or any matters arising in connection with it, and to report on the question, or on those matters, to the Secretary of State.