The laws don't, it's all silly techbro bullshit.the kind of weapons, communications, and sensors "Dark Forest" requires are silly nonsense. It has an enormous number of holes. It's pretty easy to detect whether planets out to quite long distances have organic life on them, so why hasn't someone used their magic hyperspace lasers to blast every life baring planet, including us? If you want to destroy a solar system you've got to be at a level where you could shoot, idk, Jupiter, at another solar system. How are you going to do that? You'd pretty well have to turn an entire solar system in to a gun and people are going to notice if you re-configure a solar system to do that. If you build a dyson swarm and use it as a giant laser folks will notice the dimming of the star and everyone near the path of the beam will notice it and be aware of it's point of origin.

Dark Forest mostly drastically misunderstands how big space is, how stealth in space can and cannot work, how probability works, how rare life is, and makes a whole bunch of silly assumptions not least of which is that it's worth anyone's time to pretend that there are magic people in the sky who will punish us for being naughty.

I compare it to Pascal's Wager for illiterate tech bros. It's exactly as worthy of consideration as Roko's Basilisk.