Bureau for the Protection of the Duke

The Most Honourable and Just The Bureau for the Protection of the Duke, in service of the Marquess of Justice, often shortened to Bureau for the Protection of the Duke (BPD), is the federal of Rockall and "Investigator-General of and for all Its Grace The Duke's Loyal Subjects ". It is charged with the enforcement of all federal laws, and has powers of arrest (though no powers of persecution) in the enforcement of Seafaring confederate law. For the latter it cooperates with the SCPPO and the SCIFR, and with other national law enforcement agencies in the confederation.

Until 1999, the BPD also served as a domestic and  service, and was thus very similar to the  of the. It lost these functions to the newly formed Ducal Guard.

Though a domestic service in nature, it also operates from 125 offices and sub-offices in Rockallic embassies and consulates around the world, as it serves as the Investigator-General for all subjects of the Duke of Rockall, i.e., all individuals around the world holding a Rockallic passport.