When the state receives notice that a deposition will be taken of a witness listed on the indictment, information or notice of additional witnesses, the state may object that the witness (a) is a foundation witness or (b) has been adequately examined on preliminary hearing. The court shall immediately determine whether discovery of the witness is necessary in the interest of justice and shall allow or disallow the deposition.
The court may require a party be confined to an adjacent room or behind a screen or mirror that permits the party to see and hear the child during the child’s deposition, but does not allow the child to see or hear the party. However, if a party is so confined, the court shall take measures to ensure that the party and counsel can confer during the deposition and shall inform the child that the party can see and hear the child during deposition.
Iowa. R. Crim. P. 2.13