An unnamed Psi Cop met with Alfred Bester on Babylon 5 in 2260. Bester, currently taking Sleepers, lamented that she didn't arrive earlier to scan Michael Garibaldi. They discussed how Dust was created by the Psi Corps and that they were glad the confiscated Dust was back in their control.[1]
Behind the Scenes
It has been speculated (for obvious reasons) that the Psi Cop Judy Levitt portrayed, is in fact the occasionally mentioned wife of Alfred Bester.