Really, you can replace police and laws with any form of more or less organized sanctions against the perpetrators.

Law and authority is a good read, but it shows exactly that - without centralized power, people do (and, according to Kropotkin, people should) put system of unwritten controls all by themselves. And that keeps us from sliding into the savage world where everyone preys on one another.

I read half of it. It seems to overidealize the pre-law era to a large degree. Before law we had mass slavery, constant raiding of nearby tribes and nothing to prevent anybody from taking everything from a person. There is definitely a case where laws can become draconian and force people to break them but I’d argue that in most countries law prevent more unwanted behavior than cause it.

This especially doesn’t apply in modern times since you just need one person to create a private mercenary group to essentially create a mini kingdom within a loosely organised society. That person will very quickly be able to form a successful dictatorship by raiding, enslaving and demanding tribute from nearby settlements.

Even a laissez faire government with everything legal except violence will essentially make it legal to dump toxic waste on your front lawn everywhere without policing and laws. Toxic waste is currently being dumped with laws just under woefully loose law and I’d argue that we need more laws and regulation to prevent people from doing so.

I feel like anarchist theory quickly forgets that we had anarchy before law and people quickly formed kingdoms around settlements to defend themselves and aggressive kingdoms where more successful than passive ones.