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Research Tools

The Cambridge Crime Harm Index (CCHI) is the first system that measures the seriousness of crime harm to victims, and not just the number of officially recorded crimes. Since its publication in 2016, it has led to similar systems being adopted by the Office of National Statistics (UK), the Danish and Western Australian Police, and the creation of similar indices for Japan, California, Pennsylvania, and Sweden and other jurisdictions. The attached values are based on the Sentencing Guidelines for England and Wales, using the starting point for sentencing first offenders. The CCHI this excludes crimes detected by proactive policing, which are an indicator of police enforcement priorities rather than of the safety of victims and potential victims. The values for over 700 offence categories may be downloaded or copied from the spreadsheet on the link to this page, which the Institute provides as a resource for its students and the wider research community.

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BBC report on research that police patrols at Underground stations in London helps reduce crime

Jan 17, 2020

Research presented in a paper co-authored by Dr Barak Ariel (Institute of Criminology), Professor Lawrence Sherman (Institute of Criminology), and Mark Newton suggests that four 15-minute patrols per day at crime hot spots on the London Underground created a "phantom effect" lowering crime throughout the day.

The Reducing Crime podcast - Lawrence Sherman talks with Jerry Ratcliffe

Nov 19, 2019

Lawrence Sherman and Jerry Ratcliffe discuss the right questions to ask about algorithms in policing.