As far as I remember it was a two part protection. Any official act, no matter the intent, is protected. So as one dissenting justice pointed out, ordering seal team six to assassinate a political rival could be protected as it falls within the powers of the president to direct the military. Besides that, any criminal action outside of that overly broad protection still cannot be prosecuted using any evidence that comes from the actions of the president in their capacity as such. So if the president has a phone call logged in official records in which they outline or perform an illegal act, those logs will be inadmissible in court, only evidence reltaed to the president as a private individual is admissible. The stormy daniels case had to throw out evidence because of this, despite being related to crimes committed before the election even.

Obligatory disclaimer: I’m not a lawyer and working off of memory. I might misunderstand or misremember some of this.

I get that non-violent crime has a specific meaning in law, but calling the selling of children, causing massive psychological damage non-violent really rubs me the wrong way. Not a criticism of you but of the system that conciders it non-violent just because it was done with the stroke of a pen instead of the wave of a gun.