citizenoffenderpolicelamp

City statistics (live)

Model: offenders attack suitable targets that lack capable guardians (routine activity theory, Cohen and Felson 1979). Disorder raises risk and spreads (broken windows); collective efficacy makes bystanders intervene and cleans disorder (Sampson et al. 1997). Police presence deters; hot-spot patrols follow recent crime (Sherman and Weisburd 1995). Drag police units; add or remove police and lamps with the mode buttons. A stylised teaching model, not a predictive one.