In order to prevent organized crime from abusing opportunities facilitated by the licit/legitimate environment, it is of vital importance that governments, businesses, and legal professions properly conduct their tasks of supervision and carry out checks and balances. This is a final report of part of the Falcone study entitled, “The Identification and Prevention of Opportunities that Facilitate Organized Crime” which attempts to analyze criminal investigation files in order to identify opportunities for facilitating organized crime. Four participating countries; Finland, Hungry, Italy, and the Netherlands drew up a report in which 15 cases of organized crime were described and analyzed. The reports include red flags, indications for possible preventive interventions, and present preventive measures. This final report is comprised of red flags from the four national reports and the possibilities for the prevention of organized crime are outlined with regard to four topics. The report expands on the possibilities available to public administrations and local businesses to prevent unintentional interaction with organized crime groups. It discusses the preventive measures regarding the interaction between organized crime groups and the legal professions. It continues by describing measures of two important tools of organized crime: the abuse of official and informal financial services and forged official documents. Lastly, a number of conclusions and recommendations in relation to the prevention of organized crime are presented. References and appendices 1-3