scholarly journals The effect of public surveillance cameras on crime clearance rates

2021 ◽  
Author(s):  
Yeondae Jung ◽  
Andrew P. Wheeler
Keyword(s):  
Clearance Rates ◽  
Public Surveillance ◽  
Surveillance Cameras ◽  
Crime Clearance

scholarly journals The effect of public surveillance cameras on crime clearance rates

2019 ◽  
Author(s):  
Yeondae Jung ◽  
Andrew Palmer Wheeler
Keyword(s):  
Research Design ◽  
Clearance Rate ◽  
Cost Effective ◽  
Crime Reduction ◽  
Clearance Rates ◽  
Camera Placement ◽  
Public Surveillance ◽  
Surveillance Cameras ◽  
Close Circuit Television ◽  
Crime Clearance

Much research has examined the crime reduction benefits of public close-circuit television (CCTV) cameras, suggesting that cameras may not deter enough crime to justify their cost. Another benefit of CCTV though is its utility in investigations and in clearing cases, which has been much less studied. Using a sample of public crimes and case clearances in Dallas, Texas, we examine the efficacy that public CCTV cameras increase case clearance rates using a pre-post research design. We find that cases closer to cameras did have an increased clearance rate after the cameras were installed in Dallas. But the effects faded quite quickly in space, and were mostly limited to thefts. While our estimates here suggest the cameras are likely not cost-effective in this sample in terms of increasing clearances, it suggests there is potential to be more targeted in camera placement that might provide better justification for their (limited) use.

Is a Decentralized Police Organization a Better Option in a Modern Democratic Society? A Case Study From South Korea

2021 ◽  
pp. 109861112110420
Author(s):  
Sungil Han ◽  
Jennifer LaPrade ◽  
EuiGab Hwang
Keyword(s):  
South Korea ◽  
Violent Crime ◽  
Fear Of Crime ◽  
Police Department ◽  
Property Crime ◽  
Interrupted Time Series ◽  
Crime Rates ◽  
Interrupted Time Series Analysis ◽  
Clearance Rates ◽  
Crime Clearance

While western countries have had a decentralized policing model for many years, some countries, such as South Korea, still employ a centralized, national police department. Responding to calls for reform, South Korea launched a pilot program and implemented a more decentralized policing structure in Jeju Island in 2006. This study adds to the policing literature by offering the empirical comparison of a region before and after decentralization of a police department. This study will examine the intervention effects of police decentralization in Jeju, specifically related to crime rates, crime clearance rates, victimization, trust in police, and fear of crime. Using propensity score matching and interrupted time series analysis, this study found that the decentralized policing intervention significantly reduced total crime, violent crime rates, and property crime rates that lasted throughout the intervention period, while improving crime clearance rates for violent crime, as well as reduced fear of crime among residents.

scholarly journals Variability of Crime Clearance Among Police Agencies

2018 ◽  
Vol 22 (1) ◽  
pp. 82-111 ◽  
Author(s):  
Thomas L. Scott ◽  
Charles Wellford ◽  
Cynthia Lum ◽  
Heather Vovak
Keyword(s):  
Organizational Factors ◽  
The United States ◽  
Police Departments ◽  
Clearance Rates ◽  
Quantitative And Qualitative Research ◽  
Police Agencies ◽  
Term Variation ◽  
Crime Clearance ◽  
Crime Types

Average crime clearance rates have remained remarkably stable in the United States since the 1980s, despite many advances in investigative technologies or fluctuations in crime. Taking these average trends at face value, some have suggested that this stability indicates that police departments can do little to alter their clearance rates. However, in this study, we find that the average trends mask substantial long-term variation in crime clearance among police agencies. Using group-based trajectory modeling, we test whether large U.S. police departments have reported uniquely different long-term clearance rate trends from 1981 to 2013 and what organizational factors might contribute to different trends. As we discuss, this method has attractive qualities that provide for a more rigorous analysis compared with past comparative work. Our results show diverse levels and patterns of clearance both within individual crime types and across multiple crime types that appear to covary with organizational factors. We explain how finite mixture modeling can advance both quantitative and qualitative research by identifying departmental differences in performance for further study.

Evaluating the Use of Public Surveillance Cameras for Crime Control and Prevention

2011 ◽  
Author(s):  
Nancy G. La Vigne ◽  
Samantha S. Lowry ◽  
Joshua A. Markman ◽  
Allison M. Dwyer
Keyword(s):  
Crime Control ◽  
Public Surveillance ◽  
Surveillance Cameras ◽  
Control And Prevention

Property Crime Clearance in Small Jurisdictions

2018 ◽  
Vol 43 (4) ◽  
pp. 477-493 ◽  
Author(s):  
Jeffrey J. Roth
Keyword(s):  
Negative Binomial ◽  
Property Crime ◽  
Negative Binomial Regression ◽  
The United States ◽  
Police Departments ◽  
Clearance Rates ◽  
Residential Instability ◽  
Large Cities ◽  
Binomial Regression ◽  
Crime Clearance

Research on the factors that influence crime clearance rates has primarily studied violent crimes in large cities. However, property crimes are among the most commonly occurring and least frequently cleared offenses, and the majority of police departments in the United States serve small jurisdictions. Thus, this study undertook an examination of the predictors of clearance rates for burglary, larceny, and vehicle theft in a sample of agencies serving populations of 50,000 people or fewer. Independent variables included both policing factors (e.g., workload, funding, broken windows arrests) and social disorganization indicators (e.g., residential instability, poverty). Negative binomial regression analyses revealed variation in the significance of the predictors across the three crimes. Additionally, many predictors found to be influential in prior work were insignificant in this study, which suggests differences in the nature of crime clearance between large cities and smaller jurisdictions and a need for further research in this area.

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