Macksville High School is an Australian public high school in Macksville, New South Wales.The school caters to a significant Aboriginal student population.The school has established a sister-school relationship with Jambi Sumatera, Indonesia.HistoryThe school was established in 1950 and 50 year celebrations were held in 2000.In March 1971, the high school was the site of a siege in which a 19 year old held police at bay with a.22 caliber rifle for almost three hours.