1. A court of this state may request the appropriate court of another state to hold a hearing to obtain evidence, to order persons within that state to produce or give evidence under other procedures of that state, or to have social studies made with respect to the custody of a child involved in proceedings pending in the court of this state; and to forward to the court of this state certified copies of the transcript of the record of the hearing, the evidence otherwise obtained, or any social studies prepared in compliance with the request. The cost of the services may be assessed against the parties.

2. A court of this state may request the appropriate court of another state to order a party to custody proceedings pending in the court of this state to appear in the proceedings and, if that party has physical custody of the child, to appear with the child. The request may state that travel and other necessary expenses of the party and of the child whose appearance is desired will be assessed against the appropriate party.