Description & Citation--Study No. 21660

Bibliographic Description

Study No.:

21660

Title:

New York Police Department (NYPD) Stop, Question, and Frisk Database, 2006

Alternate Title:

NYPD SQF Database

Principal Investigator(s):

New York City Police Department

Funding:

New York City Police Department

Bibliographic Citation:

New York City Police Department. New York Police Department (NYPD) Stop, Question, and Frisk Database, 2006. ICPSR21660-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2008-06-18. doi:10.3886/ICPSR21660.v1

Scope of Study

Summary:

These data were originally collected by New York Police Department officers and record information gathered as a result of stop question and frisk (SQF) encounters during 2006. These data were used in a study carried out, under contract to the New York City Police Foundation, by the Rand Corporation's Center on Quality Policing. The release of the study, "Analysis of Racial Disparities in the New York Police Department's Stop, Question, and Frisk Practices" (Rand Document TR-534-NYCPF, 2007) generated interest in making the data available for secondary analysis. This data collection contains information on the officer's reasons for initiating a stop, whether the stop led to a summons or arrest, demographic information for the person stopped, and the suspected criminal behavior.

Subject Terms:

police, police citizen interactions, search and seizure

Smallest Geographic Unit:

precinct

Geographic Coverage:

New York City, New York (state), United States

Time Period:

  • 2006

Date of Collection:

  • 2007-03

Unit of Observation:

police-citizen encounter

Universe:

All street encounters between New York Police Department officers and citizens within New York City resulting in completion of NYPD form UF250 (Unified Form 250) during 2006.

Data Types:

administrative records data

Data Collection Notes:

At the request of the NYPD, several variables were removed from the original data file. These variables reflected notes made by NYPD officers during stop-question-frisk encounters, and thus contained potentially identifying information about officers and suspects.

Methodology

Sample:

inap.

Weight:

none

Mode of Data Collection:

record abstracts

Response Rates:

Not applicable.

Extent of Processing:

All archived data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. The archive also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, the archive performed the following processing steps for this data collection:

  • Performed consistency checks.
  • Checked for undocumented or out-of-range codes.

Access and Availability

Note:

Detailed file-level information (such as record length, case count, and variable count) is listed in the file manifest.

Original ICPSR Release:

2008-06-09

Restrictions:

This data collection may not be used for any purpose other than statistical reporting and analysis. Use of these data to learn the identity of any person or establishment is prohibited.

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© 2011 Regents of the University of Michigan.  ICPSR is part of the Institute for Social Research at the University of Michigan.