On Friday, 2 November 2001, the Bureau of Crime Statistics held a national seminar in Sydney on drug law enforcement and harm reduction. As police corruption is a serious risk in drug law enforcement Justice Wood, Chief Judge at Common Law in the New South Wales Supreme Court, was invited to give a lunch-time address on how corruption in drug law enforcement might be prevented. Justice Wood is uniquely qualified for this task, having conducted the Royal Commission into Police Corruption in New South Wales. His views on what fosters corruption in drug law enforcement and how it might be prevented are invaluable reading for anyone concerned to maximise the contribution which drug law enforcement can make to harm reduction. This bulletin is the edited text of Justice Wood's speech.