Common Law

United States federal regulatory regime, placed within the common law tradition as its domestic legal system, though the regulations themselves are agency rules rather than judge-made law.

Named here for its documented English and American constitutional lineage. Civil law systems recognize closely analogous fair-procedure guarantees under related principles, including the rule of law and the principle of legality, rather than under the same name.

Australia is a common law country whose High Court sits atop a federal system of state and territory common law jurisdictions.

Named here for the documented United States common law origin of the modern doctrine through Marbury v Madison. Civil law jurisdictions developed an analogous power later, generally through a dedicated constitutional court rather than the ordinary judiciary.

Legislated within the federal common law system of the United States, the same nationality-jurisdiction convention already used for John Marshall.

Legislated within the federal common law system of the United States, the same nationality-jurisdiction convention already used for John Marshall.

Equally foundational to common law criminal procedure, though the doctrine own documented historical origin traces to Roman law and the French Revolutionary tradition, recorded on its civil law edge.

Dicey's classic formulation is the doctrine's English common law statement; civil law systems recognize closely analogous fair-governance guarantees under related principles such as the principle of legality (Rechtsstaat), rather than under the same name.

Exemplified by the United States' strict tripartite separation with reciprocal checks and balances.

Canada is a common law country outside Quebec, whose private law is civilian; the Supreme Court sits atop both traditions.

The UCC operates within the common law jurisdictions of the United States and is interpreted by common law courts, though as a comprehensively drafted statute it is itself closer in form to a civil law code than to common law's traditional judge-made rules.