legal norm; legal standard
A technical term in law referring to a binding rule or standard that governs conduct within a legal system.
It is required to act in accordance with legal norms.
This judicial precedent established a new legal standard.
規範 is a broader term for norm or standard in any field; 法規範 narrows it to the legal domain.
Compound of 法 (ほう, law) and 規範 (きはん, norm/standard). The exact historical derivation is uncertain, but the term is a modern legal concept.