It serves as evidence for its veracity and is required in court proceedings. This form can be used to file an affidavit in support of court papers in the Cuyahoga County Domestic Relations Court.We hope that you find this Handbook helpful, and that it provides some aid in protecting your rights behind bars. A written statement that someone makes after promising officially to tell the truth. An affidavit can be used as proof in a law court. Once you fill out the poverty affidavit, you must have your signature notarized and file the completed affidavit in the court where your case is being heard.