Advantage of Zero Tolerance Policing
COHEN & FELSON (1979) - 'capable guardians' [i.e. visible policing & investigation of every offence] e.g. from police, deters offenders
WILSON & KELLING (1982) - investigation of minor crimes deters more serious offending
LIVERPOOL: between 2005- 2008, overall recorded crime fell by 25.7% in 3 years, violent crime by 38% Hartlepool (DS Ray Malton)