118 U.S. 425 (1886)
Norton v. Shelby County is a pivotal decision by the United States Supreme Court that addresses the consequences of actions taken by entities without lawful authority.
Whether acts performed by a governmental body created under an unconstitutional statute are valid.
An act performed by an entity operating without legal authority is void; thus, unconstitutional acts cannot confer rights or obligations.
The Supreme Court held that acts performed under an unconstitutional statute are void ab initio. As the County of Tennessee and its governing statute were never valid, any actions it purported to undertake are also without legal effect.
Norton v. Shelby County is significant for law students as it exemplifies central doctrines in constitutional and administrative law, particularly in assessing the validity of bureaucratic actions. The case introduces students to the concept of 'void ab initio' and underscores the importance of adhering to constitutional structure for the legitimacy of governmental authority. It serves as a foundational precedent in legal challenges to actions undertaken by statutory bodies and offers critical perspective on judicial review in maintaining the constitutional balance of power.