A second riot occurred on 23 September 1990, following the introduction of a restrictive policy for prisoners private property by Minister Yabsley. The incident caused massive damage to the gaol and a number of other prison institutions across the state who rioted in protest against the policy. Lockdowns in the prison system occurred across the state, which led to the Australian Human Rights Commission to describe the conditions in NSW as "a very serious violation of human rights". A large number of prisoners remained locked in their cells one month following the riots.