Form Interrogatories are a list of questions on a court form. Hire a process server in Contra Costa County, CA. Upload your case to professional County, process servers and get the best, local service of process.Effective immediately, for Civil, Family, and Probate eFilings, the upcoming hearing date must be included in the filing description box. If he won't sign, make a motion to the judge. And better still, get a lawyer to help you. Submit the legal documents you want served and basic service information. Auto-fill and address verification make it fast and easy. This HowTo Guide addresses the steps for filing and serving motions in general civil cases in Contra Costa County Superior Court. In Re Complex Litigation Matters. ,.