Alexander, 46, is an intravenous drug user and has been to prison. He says about his life: 'I come from a criminal family. My father was a criminal, my mother was a pick pocket. My parents were always away from home. I grew up on the street. That's where I found out about drugs and tried them for the first time.' He went to prison 6 times for assault and drug use. He says he would never get involved in drugs if he had his life again.