What about murderers?

No. The ethics are irrelevant. If there is a dispute, there is either peaceful resolution or violent resolution. There is no third option. I am not saying that one party will necessarily die. It is clear to me that you have not read either What Law Is or A Praxeological Account of Law. I suggest you read these.

Again, I think reading the above linked posts would be of great help to you. But I will explain. The only reason anyone agrees to mediation is because they prefer peaceful resolution to violent conflict. If a murderer agrees to mediation, it is because he prefers to settle the dispute without any further violence. A murderer does not agree to mediation in order to accuse the other party. The other party already believes the murderer is guilty, hence the dispute. If the murderer accuses the other party of being the initial aggressor, why would they believe that? They were there! They know they weren’t the aggressor!

In regards to him proclaiming his innocence: that does not refute my statement. If a man is falsely accused of murder, and he agrees to mediation…it is because he prefers peaceful resolution to violent resolution. Please read the posts I linked to.

Firstly, I would like to direct you to this post here that I wrote in another thread. Secondly, you are referring to law as if it is only statutory law. I am going to quite from one of my posts earlier in this thread:

I suggest you read a little on wikipedia about statutory law, common law, and customary law. They actually exist. I will direct you to a post by Clayton earlier in the thread here.

I’m not really sure how else to break this down. Either the parties agree to a peaceful solution or they don’t. Either it is raining or it isn’t.