Traffic entering the City of Oakland is constantly checked in a 65 mph zone that rapidly decreases from 65 to 55 then to 45. Often the officer is in the oncoming traffic lane and writes citations to motorist who are driving within the posted speed. There is no prosecuter but the judge acts as the cities attorney. Discovery of evidence, i.e. officers notes, is not allowed. Fines are excessive and a major source of revenue for the city.