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Quantifying the Size and Geographic Extent of CCTV's Impact on Reducing Crime in Philadelphia, Pennsylvania, 2003-2013

Metadata Updated: November 28, 2023

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. This study was designed to investigate whether the presence of CCTV cameras can reduce crime by studying the cameras and crime statistics of a controlled area. The viewsheds of over 100 CCTV cameras within the city of Philadelphia, Pennsylvania were defined and grouped into 13 clusters, and camera locations were digitally mapped. Crime data from 2003-2013 was collected from areas that were visible to the selected cameras, as well as data from control and displacement areas using an incident reporting database that records the location of crime events. Demographic information was also collected from the mapped areas, such as population density, household information, and data on the specific camera(s) in the area. This study also investigated the perception of CCTV cameras, and interviewed members of the public regarding topics such as what they thought the camera could see, who was watching the camera feed, and if they were concerned about being filmed.

Access & Use Information

Restricted: This dataset can only be accessed or used under certain conditions. License: us-pd

Downloads & Resources


Metadata Created Date August 18, 2021
Metadata Updated Date November 28, 2023

Metadata Source

Harvested from DOJ JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date August 18, 2021
Metadata Updated Date November 28, 2023
Publisher National Institute of Justice
Identifier 2953
Data First Published 2017-08-25T11:55:42
Language eng
Data Last Modified 2017-08-25T11:57:29
Rights These data are restricted due to the increased risk of violation of confidentiality of respondent and subject data.
Public Access Level restricted public
Bureau Code 011:21
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 954833a0-8058-49fe-b805-99bfcac76fbc
Harvest Source Id 3290e90a-116f-42fc-86ac-e65521ef3b68
Harvest Source Title DOJ JSON
Program Code 011:060
Publisher Hierarchy Office of Justice Programs > National Institute of Justice
Source Datajson Identifier True
Source Hash 2f4bb6137aab461d9b1421eecf4b40250e344aa05064698212e56e3230f266f2
Source Schema Version 1.1

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