“As Jim [Spahr, Office of Naval Intelligence] learned his job better, he was astounded at the variety of intelligence gathered on homosexuals by the police and government. The FBI followed people to gay bars, checked license numbers of cars parked outside, and followed people home to see with whom they had made an assignation. The San Francisco police, like police in may other cities, freely shared with the FBI and military police files of men and women they arrested in raids on gay bars, so that everyone had up-to-date lists of deviates.”
Conduct Unbecoming: Gays & Lesbians in the U.S. Military by Randy Shilts, page 51.
See this quote for more information on Jim Spahr’s job with the Office of Naval Intelligence.