http://www.amazon.co.uk/Tony-Thompson/e/B001HOI0QY/ref=ntt_athr_dp_pel_1
http://www.guardian.co.uk/profile/tonythompson?INTCMP=SRCH
Stapleton Road was indeed a main open air dealing strip in the 90s/00s, as was the Frontline in St. Paul's. Avon & Somerset, despite pleas from residents, publicly denied there were gun-toting Yardie gangs involved, and refused to do anything unless locals would let them set up OPs in their homes for surveillance purposes.
It subsequently was demonstrated that the Police had lied with regard 'there are no Yardie gangs here', and were at that time engaged in the covert part of what would be called Operation Atrium. A number of shootings took place (including the shooting by police of a suspect in disputed circumstances), the police put out a well-crafted narrative (which now placed Yardie gangs centre stage) which Tony Thompson and others lapped up, and then mounted an extensive and long-lasting paramilitary operation throughout inner city Bristol.