
He was surprised to find that Sheridan this time had Minbari telepaths present to prevent him from probing their minds. At the same time, he wanted to get a read on the command staff. In 2260, Bester traveled to B5 again in order to track down a dust dealer to prevent it from getting into alien hands. Satisfied that the situation had been handled, Bester left without question. The telepaths, along with Winters, joined hands and combined their telepathic powers to fool even the very powerful Bester into believing that Winters had helped him kill all the telepaths. Through intel from the staff, he was led to an area in Downbelow where he found a captured Winters with the telepaths. He also met with Winters again in order to cultivate a better working relationship and ask her to report back any information about escaped telepaths and any help they might be receiving. He went to B5 to get cooperation from Sheridan and the staff. On Ma(1015 EST), Bester, through torture of an escaped telepath, became aware that escaped telepaths were using Babylon 5 as a hub to coordinate escape from the Corps. Bester then bid his farewell to Commander Sinclair where he told him, "be seeing you" as he departed Babylon 5. Upon regaining consciousness, he had discovered that Kelsey was killed and that Ironheart had escaped but the failure led to Bester having to agree to a false statement about the incident so that he would not have to explain the circumstances to his superior. Arriving at the scene, Bester and Kelsey attempted to telepathically shut Ironheart down with the safe word but Alfred was knocked out by Commander Sinclair. Afterwards, a 'drill' was scheduled with Bester believing that this was an elaborate ploy to allow Ironheart to escape after the renegade came to recruit Talia Winters and Commander Jeffrey Sinclair to his cause. Talia, however, had not made contact with the man and instead the Psi Cops kept a close eye on the situation with them even tracking the movements of the senior staff in an attempt to find a lead.

Bester was aware of Talia Winters prior relationship with Ironheart and with Kelsey they scanned her mind in a painful manner in order to see if Jason had contacted her. They eventually tracked his quarry to the diplomatic station Babylon 5 where his seemingly polite nature led him to convince the senior staff that their target was a dangerous man. A safeguard was implanted in his mind to shut him down but the man managed to escape the Corps with the two Psi Cops charged with bringing him back.

The man was actually a former Psi Corps instructor who underwent illegal genetic and drug experiments in order to create a telepath with a P-20 or beyond rating.

In 2258, he along with his fellow Psi Cop Kelsey were both assigned the task of capturing a powerful rogue telepath named Jason Ironheart.
