Minimum necessary jurisdiction is the most load-bearing bounding doctrine of NWG jurisprudence:
Jurisdiction should be no broader, deeper, or longer than the function requiring it.
A public-health body may impose infection controls during an outbreak without acquiring general control over private life; a school has authority over curriculum and safety without owning a child’s interior beliefs; a project manager has authority over execution without authority over participants’ private relationships. Three dimensions matter, because legitimate authority tries to expand along all of them: broader (scope), deeper (intrusiveness), and longer (duration). Enforced consistently, this one principle limits an enormous amount of power accumulation. It pairs with resistance to standing leakage — the first keeps an authority from swelling within its domain, the second keeps it from migrating into domains it never legitimately touched — and it is the general form of the graduated, expiring authority the model asks for everywhere.