(a) For the purposes of this section, the following words shall have the following meanings:—

''Child witness'', a person who is under the age of fifteen years and who is alleged to have been a victim of, or a witness to an alleged violation of section thirteen B, 13B1/2, 13B3/4, thirteen F, thirteen H, twenty-two, twenty-two A, 22B, 22C, twenty-three, 23A, 23B, twenty-four, 24B, 50 or 60 of chapter 265 or section two, three, four, four A, four B, five, six, seven, eight, twelve, thirteen, sixteen, seventeen, twenty-four, twenty-eight, twenty-nine, twenty-nine A, twenty-nine B, thirty-three, thirty-four or thirty-five A of chapter two hundred and seventy-two.

''Simultaneous electronic means'', Any device capable of projecting a live visual and aural transmission such as closed-circuit television.

(b)

1. (1) At any time after the issuance of a complaint or indictment alleging an offense punished by any of the statutes listed herein, the court on its own motion or on motion of the proponent of a child witness, and after a hearing, may order the use of a suitable alternative procedure for taking the testimony of the child witness, in proceedings pursuant to said complaint or indictment, provided that the court finds by a preponderance of the evidence at the time of the order that the child witness is likely to suffer psychological or emotional trauma as a result of testifying in open court, as a result of testifying in the presence of the defendant, or as a result of both testifying in open court and testifying in the presence of the defendant. If the court orders the use of a suitable alternative for taking the testimony of a child witness pursuant to this section, the court shall make and enter specific findings upon the record describing with particularity the reasons for such order.
2. (2) An order issued under paragraph (1) shall provide that the testimony of the child witness be recorded on videotape or film to be shown in court at a later time or that the testimony be transmitted to the courtroom by simultaneous electronic means.
3. (3) Testimony taken by an alternative procedure pursuant to an order issued under paragraph (1) shall be taken in the presence of the judge, the prosecutor, defense counsel and such other persons as the court may allow. The defendant shall also have the right to be present unless the court's order under paragraph (1) is based wholly or in part upon a finding that the child witness is likely to suffer trauma as a result of testifying in the presence of the defendant. If the order is based on such a finding, the testimony of the child witness shall not be taken in the presence of the defendant except as provided in paragraph (4).
4. (4) Testimony taken by an alternative procedure pursuant to an order issued under paragraph (1) shall be taken in a suitable setting outside the courtroom, except that an order based only on a finding that the child witness is likely to suffer trauma as a result of testifying in the presence of the defendant may provide that the testimony be taken in a suitable setting inside the courtroom in a manner so that the child witness is not able to see or hear the defendant.
5. (5) When testimony is taken by an alternative procedure pursuant to an order issued under paragraph (1), counsel shall be given the opportunity to examine or cross-examine the child witness to the same extent as would be permitted at trial, and the defendant shall be able to see and hear the child witness and to have constant private communication with defense counsel.
6. (6) The film, videotape or transmission of testimony taken by an alternative procedure pursuant to an order issued under paragraph (1) shall be admissible as substantive evidence to the same extent as and in lieu of live testimony by the child witness in any proceeding for which the order is issued or in any related criminal proceeding against the same defendant when consistent with the interests of justice, provided that such an order is entered or re-entered based on current findings at the time when or within a reasonable time before the film, videotape or transmission is offered into evidence. Subsequent testimony of a child witness in any such proceeding shall also be taken by a suitable alternative procedure pursuant to this section.

7. (7) Whenever pursuant to an order issued under paragraph (1), testimony is recorded on videotape or film or is transmitted to the courtroom by simultaneous electronic means, the court shall ensure that:

   1. (a) The recording or transmitting equipment is capable of making an accurate recording or transmission and is operated by a competent operator;
   2. (b) The recording or transmission is in color and the witness is visible at all times;
   3. (c) Every voice on the recording or transmission is audible and identified;
   4. (d) The courtroom is equipped with monitors which permit the jury and others present in the courtroom to see and hear the recording or transmission;
   5. (e) In the case of recorded testimony, the recording is accurate and has not been altered;
   6. (f) In the case of recorded testimony, each party is afforded the opportunity to view the recording before it is shown in the courtroom.
8. (8) Nothing in this section shall be deemed to prohibit the court from using other appropriate means, consistent with this section and other laws and with the defendant's rights, to protect a child witness from trauma during a court proceeding.