Organized crime is difficult to define. In 1919, the Chicago Crime Commission began referring to certain patterns of behavior as “organized crime,” and in 1929, U.S. President Herbert Hoover talked about the concept.
In 1975, the United Nations Crime Prevention and Criminal Justice Branch invoked the term “transnational crime” to identify certain criminal phenomena transcending international borders, transgressing laws of several states, or having an international impact. Until the 2000 passage of the Palermo Convention, “transnational crime” and “transnational organized crime” (TOC) were largely criminological terms used to discuss a crime with different definitions in different states, but that transcended the jursidiction of a given state.
In 1994, the UN Secretariat, as part of the Fourth UN Survey of Crime Trends and Operations of Criminal Justice Systems, identified eighteen categories of transnational – and mostly organized – criminality: money laundering; illicit drug trafficking and corruption and bribery of public officials; infiltration of legal business; bankruptcy fraud; insurance fraud; computer crime; theft of intellectual property; illicit traffic in arms; terrorist activities; aircraft hijacking; sea piracy; hijacking on land; trafficking in persons; trade in human body parts; theft of art and cultural objects; environmental crime; and other offenses committed by organized criminal groups.
On December 15, 2000, the U.S. National Security Council issued a report outlining the impact of transnational crime on U.S. and international strategic interests.