43Contribution to maintenance by deduction from benefit
(1)This section applies where—
(a)by virtue of paragraph 5(4) of Schedule 1, an absent parent is taken for the purposes of that Schedule to have no assessable income; and
(b)such conditions as may be prescribed for the purposes of this section are satisfied.
(2)The power of the Secretary of State to make regulations under section 51 of the [1986 c. 50.] Social Security Act 1986 by virtue of subsection (1)(r), (deductions from benefits) may be exercised in relation to cases to which this section applies with a view to securing that—
(a)payments of prescribed amounts are made with respect to qualifying children in place of payments of child support maintenance; and
(b)arrears of child support maintenance are recovered.