No if they commit a felony, get charged and convicted. What would happen if a Nurse kicked the hell out of a unruly patient? Cops should be no different.
What happens when a Dr. writes a prescription under false pretenses?
What happens when a Lawyer breaks his oath?
They can lose their license and not practice. Cops should be held to a similar procedure. False arrest....lose you license. Unlawful detainment, lose your license. Excessive force, lose your license.
Are your digging your own grave on purpose? Are there crowds going to chant bring Lurker back? What exactly are you trying to do? Stretch the limits of how far you can go?
Let me know what you are wanting here.