During the period of social transition, criminal offense keeps rising and takes on the following features: exact motive of offense; adequate preparation; professional offending methods; armed offending group; complicated offending process; modern offending equipment; generalization of anti-investigation tricks.

Based on high starting point and high efficiency net system,criminal offense information controlling system consists of five information controlling patterns:criminal cases? offenders? clues for criminal cases? wanted circular and assist investigation and secret investigation.