require a party to any civil proceedings who desires to give in evidence any such statement as is mentioned in that subsection to give to every other party to the proceedings such notice of his desire to do so and such particulars of or relating to the statement as may be specified in the rules, including particulars of such one or more of the persons connected with the making or recording of the statement or, in the case of a statement falling within section 5(1) of this Act, such one or more of the persons concerned as mentioned in section 6(3)(c) of this Act as the rules may in any case require; and

enable any party who receives such notice as aforesaid by counter-notice to require any person of whom particulars were given with the notice to be called as a witness in the proceedings unless that person is dead, or beyond the seas, or unfit by reason of his bodily or mental condition to attend as a witness, or cannot with reasonable diligence be identified or found, or cannot reasonably be expected (having regard to the time which has elapsed since he was connected or concerned as aforesaid and to all the circumstances) to have any recollection of matters relevant to the accuracy or otherwise of the statement.

may confer on the court in any civil proceedings a discretion to allow a statement falling within section 2(1), 4(1) or 5(1) of this Act to be given in evidence notwithstanding that any requirement of the rules affecting the admissibility of that statement has not been complied with, but except in pursuance of paragraph (b) below shall not confer on the court a discretion to exclude such a statement where the requirements of the rules affecting its admissibility have been complied with;

may make different provision for different circumstances, and in particular may make different provision with respect to statements falling within sections 2(1), 4(1) and 5(1) of this Act respectively;