The arm of government which implements the law and policies of the government is called the Executive Branch. The executive branch is responsible for enforcing the laws and policies created by the legislative branch, which is made up of elected representatives, and the judicial branch, which interprets the laws.

In most democratic systems, the head of the executive branch is the President or Prime Minister, who is elected by the people or appointed by the parliament. The executive branch also includes other officials and agencies that are responsible for various aspects of government administration, such as the Cabinet or Council of Ministers, various departments and ministries, and law enforcement agencies.

The executive branch plays a crucial role in the functioning of government, as it is responsible for carrying out the day-to-day operations of the state and implementing the policies and programs that are intended to serve the public interest. It is accountable to the people through various mechanisms such as elections, media scrutiny, and public oversight.