Drug enforcement - does it change the drugs market? Laurie Taylor talks to Neil McKeganey about his research into police crackdowns on illegal drugs in 3 different areas of the UK. The researchers interviewed local heroin users to establish their views and experience of police activity. Although most had found raids to be shocking and distressing, this had little impact on the price or availability of illegal drugs locally. Also, the sociologist, Diana Frost, explores Militant Tendency's domination of Liverpool politics in the 1980s. Interviewing key protagonists of the time, she uncovers mixed memories of a 'city on the edge'.

Producer: Jayne Egerton.