Your facts are a bit unclear, but from what was said it would appear that Nevada is the child's Home State and retains jurisdiction; your next move would be to go to court to ask for a custody order and a pick-up order, and then seek assistance in California from the authorities to enforce it. You may want to consider a full consultation with a family law specialist before doing anything since the facts are really unclear and your options might be different depending on lots of things you do not mention -- such as whether the CPS/D.A. folks issued orders as to where the child was to be, whether a judge has any further hearings already planned, who had what rights coming out of the prior round of proceedings, etc.
Answered on Feb 28th, 2015 at 7:03 PM