Over the past few years, I've noticed a trend that police cars in many cities are transitioning from white or blue to primarily black colours. This mirrors a trend from a decade or two ago from blue or tan uniforms to primarily black. Black uniforms look cool, and tend to be intimidating (one of the reasons the SS chose black for their Hugo Boss uniforms). Similarly, I've noticed a trend for cops to be presented less as the people one goes to when they need help to being presented as the representatives of government authority.
Is this change in presentation or perception all in my mind? Or is there something more to it? And if it was a deliberate change, who made the decision and why? Do we want cops to be intimidating, to keep other citizens in their place? Do we want the police to be the people we go when we need help, or to be the people we avoid as much as possible?