The near repeats of gun violence using acoustic triangulation data
Near repeat signatures of gun violence have been generated exclusively from incidents reported to or discovered by police. However, many gun crimes go unreported. In Trenton NJ, it is believed as many as 60% of all such cases do not come to the police’s attention. This research explores near repeat qualities of gun-related violent crime in Trenton using an underutilized dataset, sounds of gunshots from ShotSpotter, allowing us to capture both reported and unreported gun-related violent crime. When examining reported and unreported gun violence, compared to solely relying on reported cases, near repeat signatures are smaller geographically and exhibit larger and more consistent statistically significant effects across temporal bands. Near repeat chains also occur more frequently and include more events. We caution against only using reported events in near repeat analyses. Improved measures of crime may change the character of near repeat events, research findings, and the operational response.
KeywordsNear repeats ShotSpotter Gun crime Policing
- Abdur-Rahman, S., 2012. Trenton’s 2012 Crime Rate Surges in Wake of Police Layoffs. The Trentonian. 14 April.Google Scholar
- Anderson, E., 1994. The Code of the Streets. The Atlantic. May.Google Scholar
- Anderson, E. 1999. Code of the Street: Decency, Violence, and the Moral Life of the Inner City. New York: W. W. Norton & Company.Google Scholar
- Block, C.R. 1993. Lethal Violence in the Chicago Latino Community. In Homicide: The Victim/Offender Connection, ed. A. Wilson, 267–342. Cincinnati: Anderson.Google Scholar
- Carr, J.B., and J.L. Doleac. 2016. The Geography, Incidence, and Underreporting of Gun Violence: New Evidence Using ShotSpotter Data. Washingon, DC: The Brookings Institution.Google Scholar
- Cornish, D., and R. Clarke (eds.). 1986. The Reasoning Criminal. New York: Springer.Google Scholar
- Federal Bureau of Investigation. 2004. Uniform Crime Reporting Handbook. Washington: s.n.Google Scholar
- Federal Bureau of Investigation, n.d. Crime in the United States. [Online] Available at: http://www.fbi.gov/about-us/cjis/ucr/ucr [Accessed 2 October 2012].
- Gonzalez, S., 2013. In Newark, Gunshot Detect System Falls Short of Booker’s Claim. New Jersey News, 9 August.Google Scholar
- Gordon, S., 2016. Milwaukee Committed to ShotSpotter But Outcomes, Data Remain Elusive. Wisconsin Public Television, 11 May.Google Scholar
- Horowitz, R. 1983. Honor and the American Dream: Culture and Identity in a Chicano Community. New Brunswick: Rutgers University Press.Google Scholar
- Langton, L., and M. Berzofsky. 2012. Victimizations not Reported to the Police, 2006–2010. Washington: U.S. Department of Justice.Google Scholar
- Lombroso, C., 1876/2006. Criminal Man. Durham: Duke University Press.Google Scholar
- Mazerolle, L.G., J. Frank, D. Rogan, and C. Watkins. 2000. Field Evaluation of the ShotSpotter Gunshot Location System: Final Report on the Redwood City Field Trial. Washington: U.S. Department of Justice.Google Scholar
- Queally, J., 2014. N.J. Homicides Sored to Seven Year High in 2013 After Surges in Newark, Trenton. [Online] Available at: http://www.nj.com [Accessed 1 March 2017].
- Ratcliffe, J. H., 2009. Near Repeat Calculator (Version 1.3). Philadelphia: Temple University and The National Institute of Justice.Google Scholar
- Schlossberg, T., 2015. New York Police Begin Using ShotSpotter System to Detect Gunshots. New York Times, 16 March.Google Scholar
- Shea, K., 2015. Trenton Police Redeploy ShotSpotter System in Larger Area of City. [Online] Available at: http://www.nj.com [Accessed 2 March 2017].
- ShotSpotter Inc. 2014. Gunshot Detection Technology Whitepaper. Newark: ShotSpotter Inc.Google Scholar
- Skogan, W.G., S.M. Hartnett, N. Bump, and J. Dubois. 2009. Evaluation of CeaseFire-Chicago. Washington, DC: U.S. Department of Justice.Google Scholar
- Truman, J.L., and R.E. Morgan. 2016. Criminal Victimization, 2015. Washington, DC: U.S. Department of Justice.Google Scholar
- Wikström, P.-O.H., D. Oberwittler, K. Treiber, and B. Hardie. 2012. Breaking Rules: The Social and Situational Dynamics of Young People’s Urban Crime. Oxford: Oxford University Press.Google Scholar