The Social Security (Recoupment) Regulations 1990,

Particulars to be stated before liability of compensator becomes unenforceable

9.  The following particulars are prescribed for the purposes of paragraph 15(1)(a)(i) of Schedule 4 (particulars to be stated before liability of compensator becomes unenforceable)—

(a) the full name of the victim together with his address, and either his date of birth or national insurance number or both if both are known,

(b) unless already furnished to the Secretary of State in accordance with regulation 5—

(i) where the liability arises or is alleged to arise in respect of an accident or injury, the date of that accident or injury, or where it arises or is alleged to arise in respect of a disease, the date the disease was diagnosed;

(ii) the nature of the accident, injury or disease; and

(iii) where known, whether at the time of the accident or injury or the diagnosis of the disease the victim was employed under a contract of service, and if he was, the name and address of his employer at that time and the person’s payroll number.