Ian investigates the impact drug use has on individuals and populations. Focusing on the social, health and political issues related to drug and alcohol use.

He writes a regular column for The Independent, provides opinion pieces for the British Medical Journal as well as publishing academic papers.

Prior to becoming an academic Ian worked as a mental health nurse working with people who had a severe mental health problem and used drugs or alcohol problematically. He also has experience of working with rough sleepers and people who are homeless.