Newcastle and later Port Macquarie (1821), adopt an official system of using Aborigines as guards and trackers to prevent the escape of prisoners. Commandants identify Aboriginal leaders and give gorgets as rewards for their services and as proof of their status. Around 1821, trackers, Morningal and Yarrowbee are “decorated by the commandant with a brass crescent-shaped plate” to confer on them the rank of “chief”. The work is dangerous and at least one Aboriginal “king” is killed apprehending convicts. “King Burrigan” is fatally knifed by John Kirby, one of two convicts who escape from Newcastle. The men are captured almost immediately by Burrigan and his people. Unfortunately, Burrigan is stabbed by Kirby the following morning when the men panic at the sight of arriving soldiers. (NMA)