After Michael Garibaldi was captured during an attack by the Shadows on the station, Bester was able to secretly recover and capture him in turn. Bester had become aware of an anti-telepath conspiracy, and decided to try and use Garibaldi to expose it. Bester subjected him to subtle reprogramming in order to use him as a sleeper agent. He accentuated traits of paranoia and distrust of authority, correctly believing that the conspiracy would view Garibaldi as a prime recruit once alienated from his friends and work. This unnamed Psi Cop was instrumental in reprogramming Garibaldi's personality.