The entire institution is corrupt.
The old guard—made up of fine, decent, lawful police officers who took seriously their oath of office to serve and protect their fellow citizens, uphold the Constitution, and maintain the peace—has given way to a new guard hyped up on their own authority and the power of the badge who have almost absolute discretion to decide who is a threat, what constitutes resistance, and how harshly they can deal with the citizens they were appointed to "serve and protect."
Memphis' now-disbanded Scorpion unit provides a glimpse into the looming crisis in policing that has gone beyond mere militarization.
Unfortunately, while much has been said about the dangers of police militarization, a warrior mindset that has police viewing the rest of the citizenry as enemy combatants, and law enforcement training that teaches cops to shoot first and ask questions later, little attention has been paid to the role that "roid rage," triggered by anabolic steroid use and abuse by police, may contribute to the mounting numbers of cases involving police brutality.
Given how prevalent steroid use is within the U.S. military (it remains a barely concealed fixture of military life) and the rate of military veterans migrating into law enforcement (one out of every five police officers is a military veteran), this could shed some light on the physical evolution of domestic police physiques.