Family law cases, and child custody cases in particular, are very document heavy. In international child custody cases, when the Hague Convention on the Civil Aspects of International Child Abduction is applicable, any documents filed in the case are  admissible in a sister state. For example, if an incoming case is filed in Los Angeles Superior Court for a French child custody order, the application in Los Angeles will have to admit documents that were filed in the French Court. Family Lawyers in Los Angeles who practice in this area, are familiar with the rules and procedures and will be able to work with foreign counsel to coordinate the case.

Article 30

Any application submitted to the Central Authorities or directly to the judicial or administrative authorities of a Contracting State  in accordance with the terms of  this Convention, together with documents and any other information appended thereto or provided by a Central Authority, shall be admissible in the courts or administrative authorities of the Contracting States.