The Affidavit of Service - sometimes called an 'Affidavit of Delivery - is a sworn or affirmed statement that is completed by the person who performs the service. This document tells the court that the other party was served, what they were served (which documents), where and when they were served, and by whom. They will also state how they knew they were serving the right person. For example, they may have asked to see the person’s driver’s license, or they may have been given a picture of the person, and the person they served matched the person in the picture.