Does Third-Party Policing Increase Crime? Evidence from Nuisance Ordinances

Although third-party policies adoption (i.e. policies targeting non-offending parties to address misconduct by individuals within their control) is growing worldwide, its effect on crime remains unclear. Using Ohio data from 2000 to 2014, this study examines the impact of nuisance ordinances, a policy that penalises landlords for disturbances on their properties. The findings indicate a 18% increase in burglaries and a 28% rise in vehicle thefts. Indirect evidence suggests these effects are driven by an increase in homelessness, prompting more individuals to seek shelter in buildings and vehicles. These findings highlight that third-party policing may backfire.