HM Government
Single body of ministers
R (BAPIO) v SSHD
Cabinet Manual (2011), ch 3
Cabinet
Creature of convention
Formally headed by monarch
PM is head; First Lord of Treasury
Collectively responsible to Parliament
Ministerial Appointments
King appoints on PM advice
Prerogative or statutory office
Statutory limits on numbers
HC Disqualification Act 1975
Ministerial Salaries Act 1975
Foreign Affairs Power
Most significant prerogative area
*Case: JH Rayner v DTI* (Tin Council)
Miller #1 [53]–[55]
Dualism: treaties ≠ domestic law
Miller #1 and Article 50
Prerogative cannot change domestic law
ECA 1972 conduit pipe
Parliament must authorise
House of Lords & Executive
Sovereign: fountain of honour
Life Peerages Act 1958
HL (Hereditary Peers) Act 2026
Wholly nominated chamber
788 members (June 2026)
Democratic deficit concerns