Don't think, however, that the military mentality and equipment associated with SWAT operations are confined to those elite units. Increasingly, they're permeating all forms of policing.
As Karl Bickel, a senior policy analyst with the Justice Department's Community Policing Services office, observes, police across America are being trained in a way that emphasizes force and aggression. He notes that recruit training favors a stress-based regimen that's modeled on military boot camp rather than on the more relaxed academic setting a minority of police departments still employ. The result, he suggests, is young officers who believe policing is about kicking ass rather than working with the community to make neighborhoods safer. Or as comedian Bill Maher reminded officers recently: "The words on your car, ‘protect and serve,' refer to us, not you."
This authoritarian streak runs counter to the core philosophy that supposedly dominates twenty-first-century American thinking: community policing. Its emphasis is on a mission of "keeping the peace" by creating and maintaining partnerships of trust with and in the communities served. Under the community model, which happens to be the official policing philosophy of the US government, officers are protectors but also problem solvers who are supposed to care, first and foremost, about how their communities see them. They don't command respect, the theory goes: they earn it. Fear isn't supposed to be their currency. Trust is.
http://www.motherjones.com/politics/2014/08/america-police-military-swat-ferguson-westcott-tampa