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Curated

Detection of Crime, Resource Deployment, and Predictors of Success: A Multi-Level Analysis of CCTV in Newark, New Jersey, 2007-2011 (ICPSR 34619)

Released/updated on: 2019-09-24
Geographic coverage: United States, Newark, New Jersey
Time period: 2007-11-01--2011-04-01

The Detection of Crime, Resource Deployment, and Predictors of Success: A Multi-Level Analysis of Closed-Circuit Television (CCTV) in Newark, NJ collection represents the findings of a multi-level analysis of the Newark, New Jersey Police Department's video surveillance system. This collection contains multiple quantitative data files (Datasets 1-14) as well as spatial data files (Dataset 15 and Dataset 16). The overall project was separated into three components:

  • Component 1 (Dataset 1, Individual CCTV Detections and Calls-For-Service Data and Dataset 2, Weekly CCTV Detections in Newark Data) evaluates CCTV's ability to increase the "certainty of punishment" in target areas;
  • Component 2 (Dataset 3, Overall Crime Incidents Data; Dataset 4, Auto Theft Incidents Data; Dataset 5, Property Crime Incidents Data; Dataset 6, Robbery Incidents Data; Dataset 7, Theft From Auto Incidents Data; Dataset 8, Violent Crime Incidents Data; Dataset 9, Attributes of CCTV Catchment Zones Data; Dataset 10, Attributes of CCTV Camera Viewsheds Data; and Dataset 15, Impact of Micro-Level Features Spatial Data) analyzes the context under which CCTV cameras best deter crime. Micro-level factors were grouped into five categories: environmental features, line-of-sight, camera design and enforcement activity (including both crime and arrests); and
  • Component 3 (Dataset 11, Calls-for-service Occurring Within CCTV Scheme Catchment Zones During the Experimental Period Data; Dataset 12, Calls-for-service Occurring Within CCTV Schemes During the Experimental Period Data; Dataset 13, Targeted Surveillances Conducted by the Experimental Operators Data; Dataset 14, Weekly Surveillance Activity Data; and Dataset 16, Randomized Controlled Trial Spatial Data) was a randomized, controlled trial measuring the effects of coupling proactive CCTV monitoring with directed patrol units.

Over 40 separate four-hour tours of duty, an additional camera operator was funded to monitor specific CCTV cameras in Newark. Two patrol units were dedicated solely to the operators and were tasked with exclusively responding to incidents of concern detected on the experimental cameras. Variables included throughout the datasets include police report and incident dates, crime type, disposition code, number of each type of incident that occurred in a viewshed precinct, number of CCTV detections that resulted in any police enforcement, and number of schools, retail stores, bars and public transit within the catchment zone.

Curated

Evaluation of the Community Supervision Mapping System for Released Prisoners in Rhode Island, 2008-2010 (ICPSR 32004)

Released/updated on: 2014-09-30
Geographic coverage: Rhode Island, United States
Time period: 2008-01-01--2010-01-01
This study evaluated the Community Supervision Mapping System (CSMS), an online geospatial tool that enables users to map the formerly incarcerated and others on probation, along with related data such as service provider locations and police districts. Probation officers in the state of Rhode Island were surveyed a few weeks before and 18 months after the implementation of CSMS. A total of 56 probation officers participated in the first wave of the study (pre-implementation survey), and 52 probation officers participated in the second wave (post-implementation survey), yielding an overall sample size of 108 probation officers. Dataset 1 contains the data for both waves of the study. The dataset is comprised of 140 variables. Both waves of the study examined the following categories of variables: the probation officer's professional background, contact with clients, amount of time spent on job duties specific to the profession, contact with other agencies, and computer usage. The second wave added 86 variables to explore officers' experiences with CSMS, which features they used, how it impacted their work, and their expected use of CSMS in the future.
Curated
Restricted

National Law Enforcement and Corrections Technology Center's (NLECTC) Information and Geospatial Technology Center of Excellence (COE), [United States], 2014 - 2015 (ICPSR 36224)

Released/updated on: 2018-05-17
Geographic coverage: United States
Time period: 2014-01-01--2015-01-01

These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.

The study includes data collected with the purpose of determining the geospatial capabilities of the nation's law enforcement agencies (LEAs) with regards to the tools, techniques, and practices used by these agencies.

The collection includes two Excel files. The file "Geospatial Capabilities Survey Data To NACJD V2.xlsx" provides the actual data obtained from the completed surveys (n=311; 314 variables). The other file "Coding Scheme.xlsx" provides a coding scheme to be used with the data.

Curated

Police Arrest Decisions in Intimate Partner Violence Cases in the United States, 2000 and 2003 (ICPSR 31333)

Released/updated on: 2011-05-26
Geographic coverage: United States
The purpose of the study was to better understand the factors associated with police decisions to make an arrest or not in cases of heterosexual partner violence and how these decisions vary across jurisdictions. The study utilized data from three large national datasets: the National Incident-Based Reporting System (NIBRS) for the year 2003, the Law Enforcement Management and Administrative Statistics (LEMAS) for the years 2000 and 2003, and the United States Department of Health and Human Services Area Resource File (ARF) for the year 2003. Researchers also developed a database of domestic violence state arrest laws including arrest type (mandatory, discretionary, or preferred) and primary aggressor statutes. Next, the research team merged these four databases into one, with incident being the unit of analysis. As a further step, the research team conducted spatial analysis to examine the impact of spatial autocorrelation in arrest decisions by police organizations on the results of statistical analyses. The dependent variable for this study was arrest outcome, defined as no arrest, single male arrest, single female arrest, and dual arrest for an act of violence against an intimate partner. The primary independent variables were divided into three categories: incident factors, police organizational factors, and community factors.
Curated

Space-time Study of Youth and School Violence - STARS for Schools, Philadelphia, Pennsylvania, 2018-2020 (ICPSR 38014)

Released/updated on: 2025-08-14
Geographic coverage: United States, Philadelphia, Pennsylvania
Time period: 2018-02-01--2020-04-01

School violence, including violence en route to and from school, can make students afraid to go to school and frequently results in serious injury. These assaults occur in a context where the landscape that students navigate each day often includes bullying, substance use, and weapon carrying. Understanding the locations and times when students are vulnerable to assault as they proceed through their school-day routine could identify opportunities for more targeted, evidence-based prevention strategies.

The research team employed a mixed-methods, case-time-control design with GIS-assisted activity path mapping to understand risk factors and protective factors for school assault in the United States. Children aged 12-18 years requiring treatment at the emergency department of The Children's Hospital of Philadelphia (Philadelphia, Pennsylvania) for an assault-related injury, or who attended Philadelphia schools serving as recruitment sites during the study period, were recruited for the study (n=63). Participants were interviewed using a survey questionnaire and GIS technology to recreate details of the path of their activities, indoors during school and outdoors before and after, from the time they awoke in the morning up until the time they were assaulted. In addition, participants were asked to describe their activities sequentially during that period, including companions and weapon carrying, and site-line features of each location (prospect, refuge, and escape). To include individual- and environmental-level context, participants' paths were appended with data characterizing streets, buildings, neighborhood populations, and the weather that day.

This collection contains data from the quantitative survey measures (DS1) and qualitative interview transcripts (DS2) from the path mapping section of the interview. While GIS data were collected, they were not deposited to ICPSR. Qualitative data will be released at a future date.