The Capitol Police Board is a group of three members who maintain jurisdiction over the United States Capitol Police

United States Capitol Police

The United States Capitol Police is a federal police force charged with protecting the United States Congress within the District of Columbia and throughout the United States and its territories.-History:...

. The three members of this board are the Architect of the Capitol

Architect of the Capitol

The Architect of the Capitol is the federal agency responsible for the maintenance, operation, development, and preservation of the United States Capitol Complex, and also the head of that agency. The Architect of the Capitol is in the legislative branch and is responsible to the United States...

, the Sergeant at Arms of the United States Senate

Sergeant at Arms of the United States Senate

The Sergeant at Arms and Doorkeeper of the Senate is the law enforcer for the United States Senate. One of the chief roles of the Sergeant is to hold the gavel used at every session...

, and the Sergeant at Arms of the United States House of Representatives

Sergeant at Arms of the United States House of Representatives

The United States House of Representatives Sergeant at Arms is an officer of the House with law enforcement, protocol, and administrative responsibilities. The Sergeant at Arms is elected at the beginning of each Congress by the membership of the chamber...

. The Chief of the Capitol Police also serves as a member but in an ex officio status.

These same three individuals also make up the United States Capitol Guide Board

United States Capitol Guide Board

The Capitol Guide Board is a group of three members who have jurisdiction over the United States Capitol Guide Service. The three members of this board are the Architect of the Capitol, the Senate Sergeant at Arms, and the House Sergeant at Arms. These same three individuals also make up the...

 which has jurisdiction over the United States Capitol Guide Service

United States Capitol Guide Service

The United States Capitol Guide Service is a guide service charged by the United States Congress to "provide guided tours of the interior of the United States Capitol Building for the education and enlightenment of the general public, without charge for such tours." It exists under .Created in 1876...

. The position of Board Chairman is alternated between the House of Representatives Sergeant at Arms, who serves as the chairman during even years, and the Senate Sergeant at Arms, who serves during each odd year.