Boy, now your a mind reader as well. I am a believer in God and the Bible.
The Bible has many laws. Who gets to interpret which get enforced and who gets to RULE? Razors creasing your flesh? Trimming the corners of your beard? Mixing meat and dairy? According to some this would mean outlawing surgery, barber shops, and pizza parlors. Who gets to decide? Who gets to rule? How do we organize Western Civilization while we are waiting for the Messiah to return? What about those that think he already returned? Death penalty for them?
I answered your question. The duly constituted Halakhic authorities (Mashiach, the Beit Din HaGadol, and the lesser Battei-Din will determine these things just as they do today. Only there will be no distinction between religion and state.
And come on, are you that out of it? Don't you know the difference between the Mosaic Law that binds Jews and Noachide Law that binds non-Jews? You sound like that guy from "The West Wing" talking about what happens if you touch a football. Egad!
Torah and Noachide Law already exist and theoretically are already in force. But when Mashiach comes these things will be evident.
Do you actually not understand that Orthodox Jews already have a full elucidation of the details of all Biblical laws for Jews and non-Jews in their Oral Tradition? And what questions that are unresolved will be answered by Mashiach.
I apologize for thinking you were an atheist. I think I had you confused with somebody else.