The 1992 Constitution of Ghana clearly defines the role of the three arms of government: the legislature, which the Speaker of heads; the judiciary, headed by the Chief Justice; and the executive, headed by the President of the Republic.
Specifically, Article 93(2) of the Constitution provides that the legislative power (law-making) shall be vested in ; Article 58(1) provides that the executive authority (law enforcement) shall be vested in the President; while Article 125(3) provides that the judicial power (interpretation of law) shall be vested in the judiciary.
In accordance with the principle of separation of powers, the powers of each arm of government are expected to be exercised by the Constitution.
To avoid bestowing preponderant power on any of the arms of government, the Constitution has a system of checks and balances.