(2) Evidence may be given on the hearing of such an
application only with leave of the judge.
(3) The judge shall grant such leave only if it
appears to him, having regard to any matters stated in the
application for leave, that the evidence that is proposed
to be given bears on the issue of whether or not there is a
prima facie case.
(4) Where evidence is given in pursuance of leave
granted under subsection (2) the prosecutor or the accused
(as the case may be) shall be given full opportunity of
cross-examining the witness.