Online: Submit your forms online through the Civil eFiling Portal. The complaint process begins when a complaint is filed against a sworn member of the Riverside Police Department.Field 1: Fill in the county in which the action is brought. Be consistent with other forms. An eFiling guide to Initiate a New Case in the Riverside, California Superior Courts and electronically serve your documents. By typing your name here, you are acknowledging that you have signed this document. File in Proper Courthouse. Official Form Complaints. Here is a link to the California Courts website. Your computer must have the Adobe Acrobat Reader installed in order to view any of these documents.