La. R.S. 11:1322.1

The benefits payable to a child under this Chapter shall be paid to the person having legal custody of the property of the child, unless a trust created under Louisiana law has been created by the deceased member for the benefit of the child, the terms of the instrument creating the trust so provide, and the system has been provided with a certified copy of the trust document, then the survivor benefit shall be paid to the trust under the terms of the trust for addition to the trust property. In the event that the trust is contested by any party, the system shall withhold all survivor benefit payments or deposit them in the registry of the court if a concursus proceeding is filed, until there is a final binding legal agreement or judgment regarding the proper payment of the survivor benefits.