686b0c93_roaches__theory_and_mechanisms_nction_of_criminal_opportunity_Mechanism
Crime preventers [Principle for prevention] Sometimes the presence of people in an area may deter offenders to from committing a crime. This includes formal control (surveillance, access control), informal social control, self-protection or avoidance [Mechanism] 
Introduce or improve formal or informal surveillance to increase the perceived risk that committing an offence will result in identification or capture
Effective crime prevention interventions for implementation by local government | Crime prevention approaches, theory and mechanisms
Mechanism