(1) If:
(a) in accordance with paragraph 27(3)(a), the court holds a hearing to decide whether to make an order under section 31 in relation to information described in a certificate given to the court before the trial in a federal criminal proceeding began; and
(b) after holding the hearing, the court makes an order under subsection 31(5) that any person may disclose the information;
the order does not have the effect that there are grounds for re - conducting any part of the proceeding that took place before the trial began.
(2) If:
(a) in accordance with paragraph 28(5)(a), the court holds a hearing to decide whether to make an order under section 31 in relation to the calling of a witness that is the subject of a certificate given to the court before the trial in a federal criminal proceeding began; and
(b) after holding the hearing, the court makes an order under paragraph 31(6)(b) that the person may be called as a witness;
the order does not have the effect that there are grounds for re - conducting any part of the proceeding that took place before the trial began.