Form 1: "Affidavit for Warrant of Arrest and Detention". Use this form only when a photo identification was made at the time the check was written.This article provides a comprehensive sample of an affidavit letter, guiding readers through the essential components and format. Much confusion surrounds the need to submit I751 affidavits and how to write them. We explain and provide an I-751 affidavit sample. Affidavit of Motor Vehicle Gift Transfer.