The rules of court may, without limiting the generality of the Magistrates Rule Committee's powers, make provision for or with respect to any or all of the following:(a) the attendance of witnesses at hearings of applications under section 8 ;(b) the giving and admissibilty of evidence at hearings of applications under section 8 ;(c) the powers of magistrates in relation to the matters referred to in paragraphs (a) and (b) ;(d) the form of any application or notice.