Former detective Mike Rothmiller, who worked inside the unit and later wrote the book L.A. Secret Police, said: "We were ordered to dig into every aspect of a famous person's life. Their sex, their drinking, their business deals – it all went into the file, whether it was relevant or not." Redford's own file, Rothmiller said, reflected the paranoia of the era. According to Rothmiller, OCID rarely bothered with warrants. If a target was in a hotel, officers might rent the next room, punch a hole in the wall and insert a microphone.