First past post system of election
England and Wales, Scotland, and Northern Ireland each have their own judicial selection commissions or boards, and the chair of each of those bodies nominates a representative to participate in the selection panel.
first past post system of election

UK(fusion of powers) cabinets

Executive branch

head of state/queen elizabeth 2

The Queen cannot be prosecuted

Appointing the Prime Minister

Declaration of War

She CAN vote

She can veto any bill passed through Parliament

Although she is the crown, the government and state officials exercise the powers of the crown

head of government(prime minister)/ boris johnson

appoints cabinet

makes or ratifies major desicions

plans parlimentary business

arbitrates between departments

coordinates goverment

cannot change schedule of legislative decisions

parliamentary democracy

defense minister/ben wallace

Strategic military and defensive operations

Relations with international partnerships, including NATO

Defence policy (Trident), resourcing and planning

Communications on defence

cannot forsee short term military threats

foreign minister/dominic raab

British relations with foreign countries and governments

Promotion of British interests abroad.

Matters pertaining to the Commonwealth of Nations and the Overseas Territories

Oversight for the Secret Intelligence Service (MI6) and the Government Communications Headquarters (GCHQ).

cannot elect prime minister

finance minister/rishi sunak

Fiscal policy

Monetary policy

Ministerial arrangements

cannot mobilize the military

justice minister/The Rt Hon Robert Buckland

Her Majesty's Prison Service in England and Wales

Matters of probation

Oversight of the Judiciaries of the United Kingdom

cannot appoint cabinet memebers

Judicial branch

magistrates court

The Magistrates Court is one of the minor courts, and all criminal cases start here. This court isn't only for criminals, it's also for some civil matters, mainly focusing on family issues.

crown court

Crown Courts have power to deal with indictable offences, and also hear most appeals from magistrates' courts.

high court

The High Court deals at first instance with all high value and high importance civil law (non-criminal) cases, and also has a supervisory jurisdiction over all subordinate courts and tribunals, with a few statutory exceptions.

court of appeals

deals only with appeals from other courts or tribunals.

supreme court

The Supreme Court is the highest court of appeal for the whole of the UK.

legislative branch

house of lords/ Baroness Evans

Its most useful functions are the revision of bills that the House of Commons has not formulated in sufficient detail and the first hearing of noncontroversial bills that are then able, with a minimum of debate, to pass through the House of Commons.

approval of bills from the house of lords is not required

house of commons/Jacob Rees-Mogg

The Commons' functions are to consider through debate new laws and changes to existing ones, authorise taxes, and provide scrutiny of the policy and expenditure of the Government. It has the power to give a Government a vote of no confidence.

cannot elect queen

Quangos

nonelected bodies outside traditional governmental departments or local authorities