Request a Criminal Certificate of Disposition from the court. Complete a separate request for each case you will be asking the court to seal.The letter should be polite, concise, and professional, emphasizing personal growth and the benefits of expungement. New York has no laws to erase or "expunge" criminal records. New York uses a process called sealing for some cases. This guide covers eligibility for sealing, how to file a motion for sealing, and addresses some of the frequently asked questions. Use this Sample Sealing Letter as a guide to submit to the Court Clerk's office: Sample Sealing Letter. Please print this form or complete using a computer. How do I fill this out? Information on how NYS residents can obtain their own criminal history record, and FAQs regarding expungement and Certificates of Relief and Good Conduct.