When the police enforce the law, they do so unevenly, in ways that give disproportionate attention to the activities of poor people, people of color,… - Kristian Williams

In theory, police authority is restricted by state and federal law, as well as by the policies of individual departments. In reality, the police often exceed the bounds of their lawful authority and rarely pay any price for doing so. The rules are only as good as their enforcement, and they are seldom enforced. The real limits to police power are established not by statutes and regulations — since no rule is self-enforcing — but by their leadership and, indirectly, by the balance of power in society. So long as the police defend the status quo, so long as their actions promote the stability of the existing system, their misbehavior is likely to be overlooked. It is when their excesses threaten this stability that they begin to face meaningful restraints. Laws and policies can be ignored and still provide a cover of plausible deniability for those in authority. But when misconduct reaches such a level as to provoke unrest, the battles that ensue do not only concern particular injustices, but also represent deep disputes about the rights of the public and the limits of state power. On the one side, the police and the government try desperately to maintain control, to preserve their authority. And on the other, oppressed people struggle to assert their humanity. Such riots represent, among other things, the attempt of the community to define for itself what will count as police brutality and where the limit of authority falls. It is in these conflicts, not in the courts, that our rights are established.

Police violence is very frequently over-determined — promoted from above and supported from below. But where it is not actually encouraged, sometimes even where individuals (officers or administrators) disapprove of it, excessive and illegal force are nevertheless nearly always condoned. Among police administrators there is the persistent and well-documented refusal to discipline violent officers; and among the cops themselves, there is the “code of silence.” Police brutality does not just happen; it is allowed to happen. It is tolerated by the police themselves, those on the street and those in command. It is tolerated by prosecutors, who seldom bring charges against violent cops, and by juries, who rarely convict. It is tolerated by the civil authorities, the mayors and the city councils, who do not use their influence to challenge police abuses. But why? The answer is simple: police brutality is tolerated because it is what people with power want. [...] It is merely the normal functioning of the institution; it is just that the apparent conflict between the law and police practices may not be so important as we tend to assume. The two may, at times, be at odds, but this is of little concern so long as the interests they serve are essentially the same. The police may violate the law, as long as they do so in the pursuit of ends that people with power generally endorse, and from which such people profit.

Riots are communities defining what counts as police brutality and to set the limits of authority. It is here, not in the courts, that our rights are established.