I guess it's too fine a distinction for your tastes; in my book you might say there are are:
Good cops in a few rural places where they're too busy to be bad or thugs.
Bad cops who don't directly commit crimes but are part of the Blue Wall of Silence that covers up for:
Thug cops who assault citizens and their dogs (and see elsewhere in this discussion for a cat executed by a cop, but that seems to be rare).
(There's also dirty cops who e.g. get paid to do stuff like look the other way, but we're not talking about them and I don't think they're now hardly as bad a problem as thug cops, but they are another argument for ending the War On Drugs.)
I believe the majority of cops are "bad cops" per the above, which does not mean there aren't a lot of thug cops, neither of whom I make apologies for their crimes.
Good cops in a few rural places where they're too busy to be bad or thugs.
Bad cops who don't directly commit crimes but are part of the Blue Wall of Silence that covers up for:
Thug cops who assault citizens and their dogs (and see elsewhere in this discussion for a cat executed by a cop, but that seems to be rare).
(There's also dirty cops who e.g. get paid to do stuff like look the other way, but we're not talking about them and I don't think they're now hardly as bad a problem as thug cops, but they are another argument for ending the War On Drugs.)
I believe the majority of cops are "bad cops" per the above, which does not mean there aren't a lot of thug cops, neither of whom I make apologies for their crimes.