"(a) determine whether any of the special measures available ... would, in its opinion, be likely to improve the quality of evidence given by the witness; and (b) if so- (i) determine which of those measures (or combination of them) would, in its opinion, be likely to maximise so far as practicable the quality of such evidence; and (ii) give a direction under this section providing for the measure or measures ..."
"In determining for the purposes of this Chapter whether any special measure or measures would or would not be likely to improve, or to maximise so far as practicable, the quality of evidence given by the witness, the court must consider all the circumstances of the case, including in particular- (a) any views expressed by the witness; and (b) whether the measure or measures might tend to inhibit such evidence being effectively tested by a party to the proceedings."
"Nothing in this Chapter is to be regarded as affecting any power of a court to make an order or give leave of any description (in the exercise of its inherent jurisdiction or otherwise)- (a) in relation to a witness who is not an eligible witness ..."
"The court may discharge or vary (or further vary) a special measures direction if it appears to the court to be in the interests of justice to do so, ..."
"(1) For the purposes of this section- (a) a witness in criminal proceedings is a 'child witness' if he is an eligible witness by reason of section 16(1)(a) (whether or not he is an eligible witness by reason of any other provision of section 16 or 17); (b) a child witness is 'in need of special protection' if the offence (or any of the offences) to which the proceedings relate is- (i) an offence falling within section 35(3)(a) (sexual offences etc.), or (ii) an offence falling within section 35(3)(b), (c) or (d) (kidnapping, assaults etc.); and (c) a 'relevant recording', in relation to a child witness, is a video recording of an interview of the witness made with a view to its admission as evidence in chief of the witness. (2) Where the court, in making a determination for the purposes of section 19(2), determines that a witness in criminal proceedings is a child witness, the court must- (a) first have regard to subsections (3) to (7) below; and (b) then have regard to section 19(2); and for the purposes of section 19(2), as it then applies to the witness, any special measures required to be applied in relation to him by virtue of this section shall be treated as if they were measures determined by the court, pursuant to section 19(2)(a) and (b)(i), to be ones that (whether on their own or with any other special measures) would be likely to maximise, so far as practicable, the quality of his evidence. (3) The primary rule in the case of a child witness is that the court must give a special measures direction in relation to the witness which complies with the following requirements- (a) it must provide for any relevant recording to be admitted under section 27 (video recorded evidence in chief); and (b) it must provide for any evidence given by the witness in the proceedings which is not given by means of a video recording (whether in chief or otherwise) to be given by means of a live link in accordance with section 24. (4) The primary rule is subject to the following limitations- (a) the requirement contained in subsection (3)(a) or (b) has effect subject to the availability (within the meaning of section 18(2)) of the special measure in question in relation to the witness; (b) the requirement contained in subsection (3)(a) also has effect subject to section 27(2); and (c) the rule does not apply to the extent that the court is satisfied that compliance with it would not be likely to maximise the quality of the witness's evidence so far as practicable (whether because the application to that evidence of one or more other special measures available in relation to the witness would have that result or for any other reason). (5) However, subsection (4)(c) does not apply in relation to a child witness in need of special protection."
"All the evidence must in principle be produced in the presence of the accused at a public hearing with a view to adversarial argument."
"... a meaning which departs substantially from a fundamental feature of an Act of Parliament is likely to have crossed the boundary between interpretation and amendment."
"... it is for the national courts, and in particular the court of first instance, to assess the evidence before them ..."
"The Court reiterates that the admissibility of evidence is primarily a matter for regulation by national law ..."
"... in appropriate cases the interests of the defence are balanced against those of witnesses or victims called upon to testify."
"... in criminal proceedings concerning sexual abuse, certain measures may be taken for the purpose of protecting the victim, provided that such measures can be reconciled with an adequate and effective exercise of the rights of the defence."
"As a rule, these rights require that the defendant be given an adequate and proper opportunity to challenge and question a witness against him either when he was making his statements or at a later stage of the proceedings ... The Court further draws attention to the fact that Article 6 does not grant the accused an unlimited right to secure the appearance of witnesses in court. It is normally for the national courts to decide whether it is necessary or advisable to hear a witness."