The Sibyl system is a system of highly advanced artificial intelligence that supervises each and every individuals inside the country. Utilizing nation-wide psychometric scanners, the system is able to constantly supervise everyone's mind and mentalities throughout everyone's life, resulting in what we call "Crime Coefficient": a calculated likelihood of an individual committing a crime.
Depending on an individual's Crime Coefficient, the individual may be taken into mental rehabilitation facility, or be executed on the spot with lethal forces, regardless of whether or not the specific individual has committed the crimes. This leads into a peaceful society with extremely low crime rates and a happy, satisfied society.