"From my perspective, the laws of Kef are pretty normal except for not having dons and insisting that money belongs to individuals, rather than households or species. So let's see, how would I explain the laws to someone from far away. The basics are no stealing, no attacking people, no lying about business agreements, no murder, no maiming, no disiniuria, no torture, no pollution, no provocation...
Stealing means using or taking something that's not yours, including the ground below someone's house to a depth of ten feet and the air currently in their house. Damaging something is a kind of using it.
Attacking people means hurting them, unless they tried to hurt you first, or they hurt someone else first and you saw that happen. If you find people fighting, you can break up the fight by getting in their way, but you still can't attack them unless they attack you first. If you're worried that someone is about to hurt someone or steal something, you're allowed to hit them once, with intent only to cause pain, to distract them. If they attack you then, you can defend yourself but they also count as defending themselves.
If you attack someone intending to kill them or cause them lasting damage, that's worse that just intending to cause pain or distress - murder or maiming. It's also worse to cause someone pain or distress if they can't leave, or to chase after them if they try to get away - that's torture. If someone steals something, you can attack them, but you still can't chase after them or do anything worse than just attacking them to cause pain or distress. Physically preventing someone from leaving is considered to be distressing, and so counts as torture even if you don't do anything to them.
If you attack someone by exploiting a difference in your traits, that's disiniuria, which is much much worse than attacking them in any other way. Killing someone with poison is a lesser crime than slightly toasting a bit of their fur with catfire. Disiniuria usually involves magic, but it doesn't have to. Slashing someone who doesn't have claws is disiniuria. So is hitting someone half your size. But hitting someone a few inches smaller than you isn't - there's not really a clear line there. A werewolf suffocating another werewolf in rock is not disiniuria, since they're both werewolves. If someone attacks you with disiniuria, you can defend yourself with disiniuria. If you witness someone attacking with disiniuria, and you attack them with disiniuria to stop them, that's called a counter-disiniuria. If you survive the fight, the only crime you committed was 'unlicensed counter-disiniuria', which is a small crime punished only by having to pay money to the Magistrate. But you should not expect to survive the fight.
Don't lie when you say you're going to give someone money, or do something for them, if this is understood to be a formal agreement. If you're not sure if something is a formal agreement, ask. If you say you're going to do something and then you can't, that's okay, just talk with your business partner about an alternate agreement. If you can't work something out by yourselves, go to the Magistrate.
Pollution means making someone's environment noticeably worse. Their environment is specifically: their house, another house where they're living, and places that they need to access to get food and water, empty their chamber pot, make business agreements, carry out business agreements, visit the Magistrate, and have social contact with any one chosen member of their species and any one chosen person of any species. Changes that count as pollution are blowing wind at them, stopping the wind from blowing, changing the temperature, changing the amount of water in the air, changing the amount of light from the sun, putting smells in the air, making loud noise, or hollowing out the rock deep beneath them so their house is damaged, without touching the house itself and the rock ten feet under it.
In the past, provocation meant being mean to someone with the intent of getting them to attack you so that they would be in trouble. Now, it means any deliberate nonstandard use of laws to hurt someone. If make a complaint about someone, believing that they committed a crime, and your argument is considered to be not the way the law was supposed to be used, the complaint is thrown out. Confusingly, the defense against your complaint is called the 'principle of provocation', but as long as you were sincere about your complaint, you didn't do anything wrong - you didn't do the crime of provocation.
If you visit a werewolf and there is suddenly a terrible smell outside, so that they close up their house and refuse to open the door for you to leave, they did not torture you by confinement, according to the principle of provocation. If you arranged for the terrible smell in hopes of getting them in trouble, then you did the crime of provocation, and likely pollution too.
If you hurt someone, you will be hurt in the same way. Or for disiniuria, killed by the magic of the victim if possible. The punishments for other crimes vary for different Magistrates, but in Kef they're always having to pay a fine to the Magistrate.
Magistrates can do almost anything. They can't lie in business agreements. If a Magistrate is confining someone before judging or punishing them, they have to let them travel to a different town, although still in confinement.
All the stuff in the town that doesn't belong to someone else belongs to the Magistrate - oh, that's another difference. In Kef, all land within the walls belongs to the Magistrate and we have to pay her to rent it, meaning to own it as the law cares, for a temporary time.
All elves are unable to commit disiniuria. Within the area of a town, a Magistrate can give licenses to commit crimes that don't hurt people to anyone. A Magistrate can give licenses to hurt or distress people to fifty chosen agents, and can give licenses to attack people in all ways to five chosen agents. In Sota. Other countries do it differently."