Crime prevention - Situational Crime Prevention
Target hardening - making it difficult for offenders to be successful.
Based on rational choice theory.
Uses surveillance of the population and target hardening to control and prevent crime, eg. CCTV, alarms on housing.
Re-shaping the physical environment to 'design out' crime led to a large reduction in crime, eg. replacing the large sinks which homeless used for washing, reduced the number of homeless people hanging around the bus station - Port Authority bus terminal, NYC.