The Guild has a Constitution and Rules approved by the Catholic Bishops’ Conference of England & Wales.

The Guild holds an Annual General Meeting that is open to all members of the Guild. The election of members to the National Executive Committee (NEC) takes place at this meeting.

The NEC is entrusted by members to run the Guild. The NEC meets throughout the year. The NEC will invite a Guild member to act as Chairman.

A member or person associated with the Police Service may also be invited by the NEC to act as President for a term of three years, which can be renewed. The CPG NEC has not appointed a President for many years. Previously this role was held by a senior Catholic cleric, often the Administrator of Westminster Cathedral.

However, in June 2010 the NEC decided to appoint a president once again. They chose Patrick J Somerville QPM, a previous Chairman of the CPG on two occasions. He is the first Catholic layman to be appointed to this position in the history of the guild