Serving papers on another person is an official handing over of documents. The affidavit includes information pertaining to the time, date, manner of service, and the identity of the person served.The person who serves the defendant must complete a "Proof of Service" form verifying that the defendant was properly served with a copy of the claim. An affidavit of service, also sometimes called a proof of service affidavit, is a type of affidavit that relates to legal documents that are filed with a court. Service of civil process is handled through the Sheriff's Civil Division. Click here for the locations of all Civil Division offices. We have created a civil lawsuit checklist for you to use as you go through the process of initiating a lawsuit. The SER-001A is required for all writ-related services (in addition to the SER-001) being submitted to the Sheriff's Office for service. Process Servers are those who make more than ten services of process within California during one calendar year for specific compensation. Do you need more help filling out this form?