F1... The Department may deduct the sum of F2£8.40 per week from any employment and support allowance F4, jobseeker’s allowance or universal credit which the beneficiary has been awarded and F3... pay the amount deducted to or among the person or persons with care in discharge (in whole or in part) of the beneficiary's liability to pay arrears of maintenance, and retain any amount deducted in discharge of any liability to pay a fee.

No deduction may be made under sub-paragraph (1) if the beneficiary is liable to pay maintenance.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

In sub-paragraph (1) “maintenance” means child support maintenance as defined by Article 4(6) of the Child Support Order M1 whether before or after the amendment of that paragraph by section 1(2)(a) of the Child Support, Pensions and Social Security Act (Northern Ireland) 2000, and includes maintenance payable at a transitional rate in accordance with regulations made under section 28(2)(a) of that Act.