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29.4.—(1) A party who wants to introduce the evidence of a witness who is the subject of an application, direction or order must—
(a)inform the witness of the court’s decision as soon as reasonably practicable; and
(b)explain to the witness the arrangements that as a result will be made for him or her to give evidence.
(2) The court must announce, at a hearing in public before the witness gives evidence, the reasons for a decision—
(a)to give, make, vary or discharge a direction or order; or
(b)to refuse to do so.
[Note. See sections 20(5), 33A(8) and 33BB(4) of the Youth Justice and Criminal Evidence Act 1999.]