The police unions are closely aligned with the transnational white power movement. In 2016 officer-involved homicides averaged four a day (estimated) and it's only gone up since then. Also we've since learned precinct coroners have been covering up officer-involved killings for decades.
In the 1970s the FBI received an order from the US Congress to investigate officer-involved violence including homicides, and report them to the BJS for public release. They disobeyed, and our data before 2014 relies on voluntary or non-profit groups tracing obituaries, news and coroner reports back to the officers who killed them.
After the Furguson Unrest of 2014 a number of news agencies started theor own projects to hold violent police accountable. Only during the Trump administration when police violence escalated with hate crime rates (correlative relationship not established) did the FBI begin to request reports from precincts regarding officer involved killings, as a part of their investigation into domestic white-power terrorism (whcih is tricky, since the FBI is lousy with staff — including special agents — who are aligned with the movement. And most precincts by far refuse to cooperate.
A California law was passed to make behavioral reports regarding officers with patterns of violent escalation public, the police departments burned their files before the law took effect, and when courts mandated they stop, they disobeyed.
No law enforcement in the United States is a friend to the public, or to anyone outside of law enforcement, and that encompasses the bottom wrung parking monitor and the DHS and all its subdivisions.
In fact, the behaviors of the departments mirror the German SD during Heydrich's tenure circa 1938-1939, including ignoring laws that regulate who they can imprision in detention centers (id est concentration camps). Behind The Bastards did a recent two-part podcast run on Reinhard Heydrich for a deep dive on him.
