Criminal Intelligence is a combination of data regarding all types of crimes, detected criminals and criminal syndicates and prime suspects which is gathered, combined, analyzed and reported. Criminal Intelligence is more useful and applicable when dealing with organized crimes and it can be obtained using surveillance, informants, interrogation and developed research within the city by police forces. The main goal of this work is an introduction to criminal intelligence and suggestions for its development in the future. In this article, the concepts, processes, criminal products, resources, criminal examinations and the ways of linking the above issues to information technology have been discussed.