Ray. I'm thinking what Wesley was talking about is instances such as the one from Inkster. Where 57 year old Floyd Dent was pulled over for running a stop sign. Officer Melendez [[who had been released from DPD for similar abuse situations) then pulled him out of the car and began a barrage of punches to the head that lasted about a minute. I believe they tazed him as well. The other officer on the scene did not restrain him. As other cars arrived on the scene none of those officers intervened. By the end of the tape there had to be 8 or 9 police officers either particpating in or watching this mans beating.
Afterwards none of the other officers submitted a report conflicting with the official description of the incident. No one disputed him being "in posession" of cocaine. They all let the offending officer's report stand. They were all willing to not only not report the abuse of the offending officer, but to let an innocent man stand in front of the judge and face charges.
Had the press not heard of this and filed a FOIA request he would most likely have a conviction on his record as we speak.

This is the behavior that ordinary citizens view as the Blue Wall of Silence, not you letting your buddy's wife off without writing a traffic ticket.