(1)Nothing in this Part shall affect any duty imposed on a local authority by or under any other enactment.
(2)Any question arising under section 20(2), 21(3) or 29(7) to (9) as to the ordinary residence of a child shall be determined by agreement between the local authorities concerned or, in default of agreement, by the Secretary of State.
(3)Where the functions conferred on a local authority by this Part and the functions of a local education authority are concurrent, the Secretary of State may by regulations provide by which authority the functions are to be exercised.
(4)The Secretary of State may make regulations for determining, as respects any local education authority functions specified in the regulations, whether a child who is being looked after by a local authority is to be treated, for purposes so specified, as a child of parents of sufficient resources or as a child of parents without resources.