The account holder MUST provide an Affidavit of Forgery before any criminal charges can be filed! An affidavit must accompany each forged or counterfeited item.Signature forgery refers to creating or imitating someone else's signature without their permission or authorization, intending to deceive others. In Texas, it is illegal to use false information to alter, create, or sign a document for the purpose of harming or defrauding another person. A completed Forgery Complaint Form - This form provides us with the information needed to generate an offense. It MUST be filled out completely and accurately.