Established after the 2164 Constitutional Crisis, the Central Security Bureau (CSB) was created as a law enforcement agency to replace the now-defunct Federal Law Authority (FLA), which was believed to harbor anti-Union ideology due to them siding with the now-deposed Triumvirate government during the coup d'état. Many CSB staffers are former FLA officers who have reprised their role in law enforcement, after an extensive background search ensured their loyalty to the new regime. The CSB has a total monopoly over the NEU's national security, tasked with law enforcement, guarding detention camps, and even functioning as the military police force for the USRF. In order to achieve this goal, the CSB has branches, each of which answers directly to the President and the Supreme Authority. The CSB is known for its brutal but efficient law enforcement procedures, ensuring the safety and security of the NEU's citizens in exchange for fewer personal freedoms. Officers are also known to take justice into their own hands, acting as judge, jury and executioner. Enforcing laws with an iron fist to ensure compliance, most citizens are straight-up intimidated into staying on the right side of the law. Criminals who choose to disregard order and commit crimes anyway will be subject to the CSB's unorthodox and often ruthless law enforcement practices. Ofttimes, they will get away with being arrested and taken to a jailhouse, while the unlucky ones may catch a beating and be left on the side of the road by officers. Other times they may even outright disappear, never to be seen or heard from again. 

Enacted as a joint effort between the Department of Truth and the Department of Law & Order, this reeducation program was designed to ensure compliance with and loyalty to the new regime among Federal Law Authority (FLA) officers. FLA personnel, regardless of rank or department, were interned in temporary camps, facing a stark choice: undergo the new government's screening process or accept "retirement" and remain silent about their previous work, reassignment to less-intensive posts or leaving the FLA outright. This intensive four-week program placed officers in shared barracks, isolated from their usual environments and subjecting them to constant psychological evaluations and surveillance. Any and all communication with the outside world was strictly prohibited, with even internal conversations between officers being closely monitored. The reeducation materials relied heavily upon propaganda, repeatedly emphasizing the corruption of the previous government and aiming to instill a ruthless dedication to the new regime. Any form of dissent or refusal to continue the screening process would result in the FLA officer's forced "retirement."

As the reeducation process concluded, officers deemed fit for service underwent final testing, discarded their old FLA uniforms and adopted the CSB's anonymous style. They were then properly integrated into the CSB, often returning to their previous precincts in order to leverage existing rapport. The Supreme Authority and associated departments relied heavily on the effectiveness of this reeducation to maintain strict control over former FLA personnel and ensure absolute loyalty to the new regime within their ranks. Furthermore, all "rehabilitated" officers were reminded of the severe consequences should they be found to have been lying under oath or should they fail a second screening. The program's success lay in its ability to transform former FLA officers into staunch supporters of the new regime, ensuring the CSB's dominance and the unwavering enforcement of the new government's laws and ideologies.