This contribution reports about a research in a medium-sized municipality on the possibilities of giving municipalities an instrument to determine at the earliest possible stage which neighborhoods are at (increased) risk of exposure to organized crime and its consequences. We are searching for indicators to measure that exposure to give direction to preventive measures. Our focus is on the erosion of structures and foundations of society as a result of activities of organized crime, eventually resulting in the infringement of the rule of law. It is therefore not about the phenomenon of organized crime itself, but about its effects on society. This requires clarification and measurability of the concept. In this first exploration, we focus on the following five manifestations of the effect of organized crime: The emergence of a subculture: not recognizing government authority; the emergence of takeover of power in the neighborhood; the emergence of vulnerable groups of citizens; the creation of the image: crime pays off; and the emergence of unfair competition.