5A.—(1) Where the relevant date in respect of a cause of action falls before the commencement of section 7 of the Civil Liability and Courts Act 2004, an action (being an action to which section 3(1), 4(1), 5(1) or 6(1) of this Act applies) in respect of that cause of action shall not be brought after the expiration of—

(a) 2 years from the said commencement, or

(b) 3 years from the relevant date,

whichever occurs first.

(2) In this section "relevant date" means the date of accrual of the cause of action or the date of knowledge of the person concerned as respects that cause of action whichever occurs later.]