1. National Addiction Centre, Department of Psychological Medicine; University of Otago; Christchurch New Zealand
2. New Zealand Needle Exchange Programme (trading as Needle Exchange Services Trust); Christchurch New Zealand
3. School of Pharmacy; University of Auckland; Āotearoa New Zealand
4. Community Alcohol and Drug Service; Waitemata District Health Board; Auckland New Zealand
5. Salvation Army Addiction; Supportive Accommodation and Reintegration Services; Auckland New Zealand
6. Substance Use and Policy Analysis; Dunedin New Zealand