Information sharing on violence saves millions in health, criminal justice and social costs

The sharing of anonymized information about violent incidents between emergency care departments and the police and local authorities, can save millions of pounds in health and social costs alone, suggests research published online in Injury Prevention.

The analysis shows that in 2007, in Cardiff, where this was pioneered, the scheme lopped off almost £7 million from health, societal, and criminal justice costs caused by violence.

The estimated individual and societal costs of violence recorded by the police in England and Wales in 2003-4 came to £14 billion.

The Cardiff Violence Prevention Programme, which was set up in 2003, entails the capture of anonymised information on violent incidents treated in hospital emergency departments.

This information includes exactly where the incident took place, the time, day, and weapon used. These data are then fed to a crime analyst who combines them with police intelligence to come up with continuously updated crime hotspot maps.

The police and local councils use these maps to target prevention activities more precisely than is possible using police intelligence alone, including redirecting resources, changing police patrol routes, changing the licensing conditions of particular establishments, intervening in other locations, such as street violence hotspots, schools and parks, and the positioning of .

The Cardiff data has also led to other in the city, including the weekend pedestrianisation of certain areas of the centre where bars and clubs cluster, and the mandatory use of plastic barware.

The analysis drew on monthly data for and serious woundings and minor (common assaults) recorded by the police in Cardiff and 14 other comparable cities in England and Wales between 2001 and 2007, which included the two years preceding the introduction of the scheme.

The economic impact of violence was based on implementation costs and Home Office figures, taking account of inflation and other relevant factors.

Although the numbers of common assaults rose between 2003 and 2007 - a reflection of earlier and more frequent intervention resulting from use of A&E data - the number of more costly serious woundings fell in Cardiff.

This added up to a yearly saving of £5 million until 2007, when the savings rose to £6.9 million, including savings of £1.25 million in healthcare costs and £1.62 million in system costs.

The costs of setting up and running the scheme were, modest, however, coming in at just under £108,000, and just over £210,000, respectively. In all, the scheme has saved a total of £82 for every £1 spent on it.

"[Our] study builds on a growing literature showing that strategies can provide a substantial return on investment, and demonstrates the benefits of multiagency information-sharing partnerships to guide violence prevention planning, policies, and activities," write the authors.

"Moreover, the fact that the reduction in woundings and the benefit-cost savings were documented at the community level underscores the public health significance of the [Cardiff] model," they add.

More information: www.ip.bmj.com/lookup/doi/10.1… juryprev-2012-040622

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