Sec. 33: The Civil Service of the county is hereby divided into the unclassified and the classified service.
The unclassified service shall comprise:
(a) All officers elected by the people.
(b) In the office of the District Attorney: The Chief and one other deputy, one secretary, and three detectives; and special counsel and special detectives for temporary employment.
(c) In the office of the Sheriff: The Under Sheriff, or Chief Deputy. In the office of the Assessor: The Chief Deputy.
(d) Superintendents, principals and teachers in the school system.
(e) Members of the County Board of Education.
(f) Members of the Civil Service Commission.
(g) All officers and other persons serving the county without compensation.