The Speaker is elected by the assembly and is the first official to be elected in the first sitting of the Legislative Assembly following an election. The new Speaker calls for nominations for premier;the candidate with the most votes from the 20 members is elected. The Premier selects three other members to form the Cabinet of Ministers, the executive arm of government. The other two organs of government, following the Westminster model, are the Legislative Assembly and the Judiciary. General elections take place every three years, most recently on 7 June 2008.