To file a complaint, information like the officer's name, shield number, license plate number, physical description of the officer such as height, weight or anything that can distinguish the officer from the rest. The citizen should also provide information on the day, approximate time and place the incident took place, along with names of other witnesses if any. Filing a complaint can be done through the helpline telephone, by sending a letter, by sending email, by physically visiting the law enforcement office or by filling up an online complaint form. Only some agencies have online complaints facility. The complaint procedure is not very complicated and can be handled by most citizens.