Social and Behavioral Sciences Commons^™

The Crime Prevention Effect Of Cctv In Public Places: A Propensity Score Analysis, Eric L. Piza

Publications and Research

This study measures the effect of CCTV in Newark, NJ across three separate crime categories: auto theft, theft from auto, and violent crime. CCTV viewsheds, denoting camera line-of-sight, were units of analysis. Viewsheds for treatment units were created by digitizing live CCTV footage within a geographic information system (GIS). Control viewsheds were created with GIS tools and aerial imagery from Google maps. Treatment cases were matched with control cases via propensity score matching (PSM) to ensure statistical equivalency between groups. Effect was measured via odds ratios and average treatment on the treated statistics. Findings offer modest support for CCTV as …

Script Analysis Of Open-Air Drug Selling: A Systematic Social Observation Of Cctv Footage, Victoria A. Sytsma, Eric L. Piza

Publications and Research

Objectives: Through the use of closed-circuit television (CCTV) video foo- tage, the current study builds upon the drug transaction work of Piza and Sytsma by developing a crime script for open-air drug selling.

Methods: Researchers conducted a systematic social observation of CCTV footage of open-air drug markets in Newark, NJ. The data were used to identify sequential stages of drug transactions. Fisher’s exact tests measured whether buyer and seller activities during specific acts of the drug transaction event were related to activities seen in subsequent stages.

Results: This study finds three distinct acts to open-air drug events. During the pretransaction …

The History, Policy Implications, And Knowledge Gaps Of The Cctv Literature: Insights For The Development Of Body-Worn Video Camera Research, Eric L. Piza

Publications and Research

Closed-circuit television (CCTV) and body-worn video cameras (BWVCs) have rapidly spread throughout policing. Such widespread deployment has heightened the importance of identifying best practices for both of these technologies. The research community has worked toward the identification of such best practices, with bodies of knowledge emerging for both CCTV and BWVCs over recent decades. Given its earlier emergence, research on CCTV is more developed. Nonetheless, the BWVC literature is quickly becoming robust, with BWVC research developing at a much more rapid pace than research on most other police technologies. This essay reviews the CCTV and BWVC literatures across four main …