The report lists Thailand, China, Nigeria, Albania, Bulgaria, Belarus, Moldova and Ukraine as major sources of trafficked persons.
The child is treated as a sexual object and as a commercial object".
The prostitution of children is a form of commercial sexual exploitation of children in which a child performs the services of prostitution, usually for the financial benefit of an adult.
The Youth Advocate Program International (YAPI) describes CSEC as a form of coercion and violence against children and a contemporary form of slavery.
A declaration of the World Congress Against the Commercial Sexual Exploitation of Children, held in Stockholm in 1996, defined CSEC as, "sexual abuse by the adult and remuneration in cash or in kind to the child or to a third person or persons.
Concubinage was a traditional form of sexual slavery in many cultures, in which women spent their lives in sexual servitude.
In some cultures, concubines and their children had distinct rights and legitimate social position The Vienna Declaration and Programme of Action calls for an international effort to eradicate sexual slavery as an abuse of human rights.
It also defines sexual enslavement as a war crime and a breach of the Geneva Conventions when committed during an international armed conflict (Article 8.b.xxii) and indirectly in an internal armed conflict under Article(8.c.ii), but the courts jurisdiction over war crimes is explicitly excluded from including crimes committed during "situations of internal disturbances and tensions, such as riots, isolated and sporadic acts of violence or other acts of a similar nature" (Article 8.d).
The text of the Rome Statute does not explicitly define sexual enslavement, but does define enslavement as "the exercise of any or all of the powers attaching to the right of ownership over a person and includes the exercise of such power in the course of trafficking in persons, in particular women and children" (Article 7.2.c).
Sex trafficking is not the only form of human trafficking and estimates vary as to the percentage of human trafficking which is for the purpose of transporting someone into sexual slavery.
The BBC News cited a report by UNODC as listing the most common destinations for victims of human trafficking in 2007 as Thailand, Japan, Israel, Belgium, the Netherlands, Germany, Italy, Turkey and the US.
The terms "forced prostitution" and "enforced prostitution" appear in international and humanitarian conventions but have been insufficiently understood and inconsistently applied.