Receipt of testimony from victims of certain crimes who are fifteen years of age or younger; closed session of court or in chambers; procedure

In cases of simple or third degree rape, attempted simple or third degree rape, aggravated or first degree rape, attempted aggravated or first degree rape, forcible or second degree rape, attempted forcible or second degree rape, or carnal knowledge of a juvenile in which the victim is a child of fifteen years of age or younger, the court, upon its own motion or that of the defendant or state, may order that the testimony of such victim be heard either in closed session of court or in the judge's chambers, in the presence of the judge or jury, the defendant, counsel for the defendant, the family of the defendant, the parents or parent of the victim, the attorney for the state, a reasonable but limited number of members of the public which the court may allow in its discretion under these circumstances, and any other party which the court determines has a valid interest in the proceedings.