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United Kingdom Leading Case grounds illegalityproportionalitypublic authority duties

R (Begum) v Secretary of State for the Home Department

[2021] UKSC 7
JurisdictionUnited Kingdom
CourtUK Supreme Court
Year2021
StatusBinding authority

Summary

Citizenship deprivation on national security grounds is subject to judicial review but courts may not substitute their own assessment of the national security risk for that of the executive.

Key Principle

Citizenship deprivation on national security grounds is reviewable on public law grounds but the court cannot substitute its own assessment of the national security risk.

Area of Law

public-law

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