Very light detail. Even wikipedia is more critical and names the slave patrols as origin of policing in the US. Your source outright equates law and police which is very problematic. You can have a law and sets of rules in an egalitarian society with a nightwatcher system or something and no armed police force. According to wikipedia:

Up to the early 18th century, the level of state involvement in law enforcement in Britain was low. Although some law enforcement officials existed in the form of constables and watchmen, there was no organized police force.

So police isn't as common place as your source makes it seem.

I haven't read it yet but James Scott wrote a book about societies in southeast Asia without government who don't "turn bloody quickly" whatever that might mean. Also Worshiping Power is a book I have read that's topical enough.