I'm just gonna play devil's advocate here.

Before the invention of the police, communities took it upon themselves to enforce the law. Oftentimes, militia members would directly write to governors asking for arms, and would also be present in their communities during public events where an armed presence might be necessary. Arrests for members of the community would happen by way of court order first, and then a posse would be formed as a means to enact that court order. Nowhere in the US constitution does the word "police" appear because the idea hadn't even been conceived at the time of foundation.

Comparatively, today's police have far more authority to enact violence and effect arrests than even the courts. Could a court today order a dog to maul a surrendering man? Probably not. But when the police do it, apparently, that's just the cost of doing business.

I think the lie is that we need the police and not the other way around.