Is it criminal in Nevada for someone to knowingly file a false affidavit with a government agency? My ex-spouse knowingly filed a false affidavit with the district attorney in regards to my payments of child support and alimony. In front of the family court judge I was able to prove it was false and that all payments were not only made but that she personally cashed the checks! Two years after the divorce she continues to do things like this with no consequences...What is the name of your state (only U.S. law)?What is the name of your state (only U.S. law)?