The Imperial Security Bureau, or the ISB, was the domestic security service of the Galactic Empire, formed from the Internal Security Bureau of the Galactic Republic in 19 BBY. A division of the ISB ended up becoming an independent agency, the Internal Safeguard Division. Not only did the ISB oversee the internal security of the Empire, it also carried out it's own intelligence operations, being rivals of the smaller Imperial Intelligence.
Organization[]
Commission of Operations[]
The Commission of Operations was essentially the high command of the ISB. It was made up of top officials who gave orders and clearances for important operations and made sure that every branch of the ISB worked together properly.
Surveillance[]
The Surveillance division was the largest in the ISB, with roughly 40% of the organization's personnel. They were generally low quality agents used to spy and report to their superiors, often used for counterintelligence. They were in abundance as well, being expendable.
Investigation[]
Interrogation[]
Internal Affairs[]
Internal Affairs was the secret police of the ISB, monitoring even fellow agents. They were among the most trained divisions and most reliable, though one of the smallest.