Here is the opinion in Ashkii v. Kayenta Family Court. From the court’s syllabus:

The Supreme Court issues its opinion regarding a petition for extraordinary writ filed by a mother in a paternity and custody matter in which the judge required that both parents pay $1,000 each for a State of Arizona custody evaluator and, furthermore, informed the mother that she would lose custody if the money was not paid. The Court stated that no Navajo rule or statute requires custody cases to be submitted to mediation or custody evaluation, furthermore a State of Arizona evaluator would not be familiar with customs and traditions of the Navajo people. A custody decision based solely on a parent’s inability to pay for a service that is not mandated by law is contrary to fairness and the best interest of the child. Parents should be informed of all options, including pre-trial settlement and peacemaking to resolve custody issues themselves. If information is needed by the family court, a guardian ad litem or Social Services are available to provide reports without charge.