There are three protocols that are referred to jointly as the Palermo Protocols, or are sometimes incorrectly referred to individually as the Palermo Protocol.
The Palermo Protocols are three protocols adopted by the United Nations in 2000 in Palermo, Italy, together with the Convention against Transnational Organized Crime. They are:
http://www.unodc.org/unodc/en/treaties/CTOC/index.html
These protocols and convention fall within the jurisdiction of the United Nations Office on Drugs and Crime.