Filling out an affidavit of non-prosecution in Texas is pretty straight-forward. It should state that the victim doesn't want to cooperate or prosecute.How to file an affidavit of non prosecution in Texas? Non-Prosecution in the matter of the State of Texas vs. I understand I have the right to counsel to advise me before I sign this affidavit. I have exercised that right or am giving up that right. This document allows victims to voice their desire not to press charges, potentially relieving them from drawnout court procedures. An affidavit of nonprosecution is simply a sworn statement (typically notarized) from the victim stating that he or she does not wish to pursue charges.