I found my Vietnam booklet from 1970 that was prepared by the Directorate of Information, Headquarters, Seventh Air Force. The above page listed the principal organizations that were part of the 7th Air Force in 1970. Douglas Gorski, 12th/483rd SPS, Cam Ranh Bay AB, 1969/70

Vietnam Security Police Association, Inc. (USAF) Map of Vietnam and Thailand showing Bases (Red letters) and Squadrons (Blue letters) Air and Security Police were stationed at.