Trafficking in persons is a truly global phenomenon: victims from at least 127 countries have been reported, and victims have been reported in 137 countries. Given this diffusion, it is difficult to estimate the size of the problem. Many countries have only recently passed, and some have yet to pass, legislation making human trafficking a distinct crime. Definitions of the offence vary, as does the capacity to detect victims. According to official figures, at least 22,000 victims were detected globally in 2006, but some countries where human trafficking is known to be a problem do not report detecting victims.
Global Report on Trafficking in Persons 2012 (forthcoming December 2012)
In the framework of the United Nations Global Plan of Action to Combat Trafficking in Persons adopted in July 2010, where Member States strengthened their response to human trafficking, the General Assembly mandated UNODC to produce a Global Report every two years, starting in 2012. The Global Report 2012 will provide an overview of patterns and flows of trafficking in persons. The report will also include a chapter on the worldwide response to trafficking in persons.
Global Report on Trafficking in Persons 2009
UNODC and the UN Global Initiative to fight Human Trafficking ( UN.GIFT) published a first global report on human trafficking in February 2009
Full report - Executive Summaries (UN languages)