Explaining the entire law is too much for me. I will hit on whati know to be true 100% for now.
Everyone has heard the golden rule, perhaps in kindergarten? "Do unto others what you wish would be done to you.
One small problem, it's inverted. It's a trap. Why would you be kind to a murderer, a consumer of babies? etc? the real one is.
What you do to others will be done to you.
You are the creator just like all of us, what you choose to do to other selves will be done to you. It's like you become an outlaw of the laws you break and now they can be done to you. (without divine consequences). Negative forces will push you to violate laws becuase they are able to do more to you the more law you violate. By violating law you are renouncing your divine protections, until you understand and repent. Does this mean people won't do wrong to you if you never do wrong? Of course not but they will have to bear the consequences of their actions themselves if they cannot make you guilty.
This is why negative entities alwasy start slow and try to get you to violate laws. Humans are slaves of higher entities, you stand no chance if you're guilty with them. That's their playground.
There are ways to fight by understanding law better (after all the enemy is guilty as hell, outlaw... outside protection of the law... hmm...), but that's an advanced topic not covered yet.
The wicked are all guilty and become very neurotic about the things they do to others being done to them, they worry about it constantly. It's projection sure but it's consistent with natural law, you really are allowed to do those things to them because of the choices they made. (they will try to have their own enforcement because they do try to mimic god but an understanding of the creator's acutal law will always prevail) .Even the most clever of wicked try to "manage negative karma," (think an insurance company, if everyone had a claim at once it's go under but you can manage having few enough claims). The folly is eventually the entire era ends and the piper must be paid. (also most fail long before this, i'm talking about a theoretical "best".
Negative karmic acts are just consciously unloving acts.