What does that have to do with a cop lying in court and continuing to be a cop after that? Judges won't be able to make just decisions if lying cops are allowed to continue to be cops. Allowing garbage-in-garbage-out seems like a systemic issue to me.

Judges generally aren't involved I'm the removal of an officer. That typically happens via IAD, and even then the union tells them to resign so the IAD investigation ends and they can just go to a different department.