Prostitution law
However, sex worker activists and organizations distinguish between human trafficking and legitimate sex work, and assert the importance of recognizing that trafficking is not synonymous with sex work. The Sex Workers Alliance Ireland organization explains: "victims of human trafficking may be forced to work in industries such as agriculture, domestic service as well as the sex industry. It is critical to distinguish human trafficking, which is a violation of human rights, from voluntary migration." The Open Society Foundations organization states: "sex work is done by consenting adults, where the act of selling or buying sexual services is not a violation of human rights. In fact, sex workers are natural allies in the fight against trafficking. The UNAIDS Guidance Note on HIV and Sex Work recognizes that sex worker organizations are best positioned to refer people who are victims of trafficking to appropriate services."
Human trafficking
Although human trafficking can occur at local or domestic levels, it has international implications, as recognized by the United Nations in the Protocol to Prevent, Suppress and Punish Trafficking in Persons, especially Women and Children (also referred to as the "Trafficking Protocol" or the "Palermo Protocol"), an international agreement under the UN Convention against Transnational Organized Crime (CTOC) which entered into force on 25 December 2003. The protocol is one of three which supplement the CTOC. The "Trafficking Protocol" is the first global, legally binding instrument on trafficking in over half a century, and the only one with an agreed-upon definition of trafficking in persons. One of its purposes is to facilitate international cooperation in investigating and prosecuting such trafficking. Another is to protect and assist human trafficking's victims with full respect for their rights as established in the Universal Declaration of Human Rights. The "Trafficking Protocol", which had 117 signatories and as of November, 2018 173 parties, defines human trafficking as:
In 2014, the International Labour Organization estimated $150 billion in annual profit is generated from forced labour alone.