In the late 1980s, something was happening in Manchester. A melting pot of music, art and culture was bubbling away, ready to explode, and Dave Haslam was right there in the middle of it. In this fascinating interview, the DJ and writer talks to James O’Brien about his passion for Manchester’s alternative music and culture, DJing at the Haçienda, the introduction of ecstasy to rave culture, and the soaring highs and destructive lows that followed.