To request a clearance letter, fill out the Police Records Request Form (PDF) or come in to our office. Stanwood Police Department Clearance Letter.A complete U-Visa application must include a signed law enforcement certification form (Form I-918B) from a law enforcement agency where the crime occurred. This form must be filled out completely and submitted with a photocopy of a government issued ID. 3. You need a police certificate if you apply for a green card from abroad, even if you have no criminal record. Learn how to get your certificate. To get a clearance, you will need to complete a PD Form 70 (Criminal History Request) for a record check. Passport with an immigration stamp or visa label. The SSA will send your Social Security number to you in the mail. Instructions for completing the applications are available online from U.S. Citizenship and Immigration Services.