At present, there is no internationally agreed definition of trafficking. The term "trafficking" is used by different actors to describe activities that range from voluntary, facilitated migration, to the exploitation of prostitution, to the movement of persons through threat or use of force, coercion, violence, etc. for certain exploitative purposes.
At the core of any definition of trafficking must be the recognition that trafficking is never consensual. It is the non-consensual nature of trafficking that distinguishes it from other forms of migration. (Radhika Coomaraswamy, www.unifemantitrafficking.org)