Jamaican posses, often referred to simply as posses, are a loose coalition of gangs, based predominantly in Kingston, London, the New York City area and Toronto, Canada, first being involved in drugs and gun-running in the early 1980s. It is widely claimed that the Jamaican posses are affiliated with Jamaican political parties, such as the Jamaica Labour Party and the People’s National Party.
The JLP posses dominate the west and south of Kingston and other smaller towns and the PNP posses are mainly found in the eastern and central side and there are a few that state they are not allied to either Political party. These are often in the Northern slums of downtown Kingston. In the United Kingdom, these Jamaican gangsters would be referred to as Yardies in reference to people who lived in “government yards” in the aftermath of Hurricane Charlie which hit Jamaica in 1951. They are strongly populated in London and are specifically known to have occupied and operate in their infamous grounds of Brixton, Harlesden, Tottenham and Hackney.