“Prerogative cannot frustrate Parliament's clear legislative intention regarding constitutional rights.”
The Chagossians were removed from their homeland to make way for a US military base. Parliament passed immigration legislation in 2002 allowing their return, but the Foreign Secretary used prerogative powers to issue new immigration orders preventing their return.
Whether the Foreign Secretary could lawfully use prerogative powers to frustrate Parliament's clear intention to allow the Chagossians' return to their homeland.
The House of Lords held by majority that the Foreign Secretary's actions were unlawful as they frustrated the clear intention of Parliament expressed in the 2002 legislation.
This case reinforces constitutional limits on prerogative powers and demonstrates judicial willingness to scrutinize executive action even in sensitive areas like foreign policy. It protects constitutional rights from arbitrary executive interference.
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OSCOLA Citation
R (Bancoult) v Foreign Secretary (No 2) [2008] UKHL 61
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