24.—Where—

(a) the parties to a dispute relating to the welfare of a child enter into an agreement in writing that includes—

(i) a provision whereby one party undertakes, or both parties undertake, to take custody of the child, or

(ii) a provision governing the rights of access of parties,

and

(b) an application is made by any party to the court for an order making the agreement a rule of court,

the court may make such an order if it is satisfied that the agreement is a fair and reasonable one which in all the circumstances adequately protects the interests of the parties and the child, and such order shall, insofar as it relates to a provision specified in subparagraph (i) or (ii) of paragraph (a), be deemed to be an order under section 11(2)(a) or 11B as appropriate.]