Source: Small Arms Survey Issue Brief. Number 17 Date: March 2016 Summary: The study by Small Arms Survey focuses on trafficking from the United States because of the ready availability of detailed documentation on criminal cases tried in US courts, including cases of arms trafficking. The cases studied describe the activities of more than 400 individuals accused of illegally shipping small arms and light weapons, their parts, accessories, or ammunition to at least 46 countries or foreign territories on 6 continents. More than half of the cases involved trafficking to Mexico.