1. Mental Health Alcohol and Other Drugs Branch, Clinical Excellence Division, Queensland Health, Brisbane, QLD, Australia;
2. Forensic Mental Health Group, Queensland Centre for Mental Health Research, Wacol, QLD, Australia;
3. Faculty of Medicine, The University of Queensland, St Lucia, QLD, Australia;
4. Queensland Forensic Mental Health Service, Queensland Health, Brisbane, QLD, Australia;
5. The Park Centre for Mental Health, Queensland Health, Brisbane, QLD, Australia;
6. Queensland Police Service, Brisbane, QLD, Australia