Nothing in this Part shall affect any duty imposed on a local authority by or under any other enactment.
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 but see subsection (2C).
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Any question arising as to whether a child is ordinarily resident—
shall be determined by the local authority and local authority in Wales concerned, or in default of agreement, by the Secretary of State.
The Secretary of State must consult the Welsh Ministers before making a determination under subsection (2C).
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The Secretary of State may make regulations for determining, as respects any education 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.