Law covers judgments, statutes and enforcement actions with attention to their operative effect: the parties bound, the date of application, the reasoning available for appeal and the precedent set. Areas include administrative, competition, employment and constitutional questions touching economic activity. Written for lawyers and for non-lawyers who must comply.
The guidelines compute a recommended range from offense severity and criminal history — advisory since 2005, but still the anchor of nearly every federal sentence.
Qualified immunity shields government officials from damages lawsuits unless they violated clearly established law — the most contested doctrine in police litigation.
The 13 federal circuit courts decide about 45,000 appeals a year, and their regional structure is why the same federal law can mean different things in California and Texas.
The Supreme Court accepts roughly 1 percent of the petitions filed each term, and the path runs through losing below, a certiorari petition, and the Rule of Four.