"Enforcement officer" means:
(a) A member of the Oregon State Police.
(b) A sheriff or deputy sheriff.
(c) A city marshal or a member of the police of a city, municipal or quasi-municipal corporation.
(d) An investigator of a district attorney's office if the investigator is or has been certified as a peace officer in this or any other state.
(e) An investigator of the Criminal Justice Division of the Department of Justice of the State of Oregon.
(f) Any other person specifically authorized by law to issue citations for the commission of violations.