Regulation 51 Detective expenses allowance
This regulation shall apply in the case of a member who is assigned, for a period of not less than a week, to detective duty and, while so assigned, is, in the opinion of the chief constable, usually engaged in outside duty.
Such a member of the rank of superintendent shall be paid a detective expenses allowance at the rate of £5 a week; and shall not be eligible for the reimbursement of expenses incurred in the execution of his duty in respect of any individual item of expenditure of £1·25 or less.
Such a member below the rank of superintendent shall be paid a detective expenses allowance at the rate of £3 a week and shall not be eligible for the reimbursement of expenses incurred in the execution of his duty in respect of any individual item of expenditure of 75p or less.