2005 Missouri Revised Statutes - § 452.465. — Simultaneous proceedings in other states.

452.465. 1. A court of this state shall not exercise its jurisdiction under sections 452.440 to 452.550 if, at the time of filing the petition, a proceeding concerning the custody of the child was pending in a court of another state exercising jurisdiction substantially in conformity with sections 452.440 to 452.550, unless the proceeding is stayed by the court of that other state for any reason.

2. Before hearing the petition in a custody proceeding, the court shall examine the pleadings and other information supplied by the parties under section 452.480 and shall consult the child custody registry established under section 452.515 concerning the pendency of proceedings with respect to the child in other states. If the court has reason to believe that proceedings may be pending in another state, it shall direct an inquiry to the state court administrator or other appropriate official of that state.

3. If the court is informed during the course of the proceeding that a proceeding concerning the custody of the child was pending in another state before the court assumed jurisdiction, it shall stay the proceeding and communicate with the court in which the other proceeding is pending in order that the issue may be litigated in the more appropriate forum and that information may be exchanged in accordance with sections 452.530 to 452.550. If a court of this state has made a custody decree before being informed of a pending proceeding in a court of another state, it shall immediately inform that court of the fact. If the court is informed that a proceeding was commenced in another state after it assumed jurisdiction, it shall likewise inform the other court in order that the issues may be litigated in the more appropriate forum.

(L. 1978 H.B. 914 § 6)