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Habeas Corpus Act 1679

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The Habeas Corpus Act 1679 is an English law that strengthened the ancient writ of habeas corpus, requiring that a detained person be brought before a court so a judge can rule on whether the detention is lawful. It remains a foundational protection against arbitrary imprisonment in common law systems.

Facts
Year
1679 1
Key Provision
Enacted by the English Parliament in 1679, it strengthened the ancient common-law writ of habeas corpus by closing procedural loopholes the crown and its officers had used to hold prisoners without trial: it required a jailer, on receipt of the writ, to produce the prisoner before a court within a set number of days and state the cause of detention, imposed escalating fines on officials who delayed or refused, and barred the practice of transporting a prisoner overseas specifically to place them beyond the writ's reach. It remains, in amended form, part of English law and a foundational guarantee against arbitrary detention in the wider Anglo-American legal tradition. 1
Cross-Tradition Connections

Associated With

Both are part of the same seventeenth-century sequence of English statutes constraining arbitrary crown power that later shaped Anglo-American constitutionalism.

Influenced

Influenced By

Magna Carta, Documents

Clause 39's promise against arbitrary imprisonment is the medieval root historians trace forward to the 1679 Act's formal writ of habeas corpus.

Sources
1. Habeas Corpus Act, England 1679 (Britannica)
Encyclopaedia BritannicaView the Source
Magna Carta (Britannica)
Encyclopaedia BritannicaInfluenced By: Magna CartaView the Source
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