Alley gating
Evidence-rated crime-reduction intervention (EMMIE).
Effect on crime
reduces crime
Evidence quality
very strong
Cost
moderate
What the evidence says
Alley gating involves installing lockable gates to prevent offenders from accessing alleyways, which can reduce crimes such as burglary, littering, and anti-social behaviors. Evidence suggests a significant reduction in domestic burglary rates in areas with these gates, showing a diffusion of benefits to surrounding areas. The review underpinning this assessment reviewed 43 studies, ultimately supporting the efficacy of alley gates in improving neighborhood safety.
How it works
Alley gates function as physical barriers that deter offenders from accessing properties. They can enhance surveillance and guardianship by encouraging resident participation in controlling access to these spaces.
Implementation
Successful implementation requires resident consent and investment in the scheme, as well as consultation with local authorities to avoid service disruption. The gates must fit the needs of the users and the environment they are installed in.
Source: College of Policing Crime Reduction Toolkit (What Works Centre for Crime Reduction). Summarised 2026-07-15. BlueLineHub is independent and not affiliated with the College of Policing.