Tonga has signed a new three-year memorandum of agreement with New Zealand and Australia to continue the development of the country's police force.
Both aid providers first became involved in 2008 following concerns about the quality of policing raised by the riots in 2006.
That original five-year arrangement, the Tonga Police Development Program, expires at the end of this month.
It focuses on developing leadership and building an efficient and effective police service that has the trust and confidence of the community.