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Curated
Simple Crosstabs

Advancing the Understanding of Immigration, Crime, and Crime Reporting at the Local Level with a Synthetic Population, United States, 2019 (ICPSR 39318)

Released/updated on: 2026-04-16
Geographic coverage: United States

This study investigated the complex relationship between unauthorized immigration and crime at the local level. Through a mix of data fusion, synthetic population modeling, and detailed crime reporting from selected jurisdictions, the study sought to produce nuanced insights to challenge prevailing assumptions about immigration and crime, ultimately aiding in informed policy-making and resource allocation.

This study employed crime and crime reporting data from ten jurisdictions across the United States paired with synthetic data which estimated the unauthorized immigrant population. This research aimed to provide an in-depth analysis at the census tract level. Analyses focused on unauthorized immigration and its correlation with drug, property, and violent crime rates, while accounting for crime reporting in traditional and emerging immigrant destinations along with sites with low foreign populations.

Curated
Simple Crosstabs

Census of Federal Law Enforcement Officers (CFLEO), [United States], Fiscal Year 2016 (ICPSR 37607)

Released/updated on: 2020-03-24
Geographic coverage: Puerto Rico, United States, Guam, Virgin Islands of the United States, American Samoa, Northern Mariana Islands
In 2016, there were approximately 132,000 full-time federal law enforcement officers who were authorized to make arrests and carry firearms in the United States and its territories. This data collection comes from the Census of Federal Law Enforcement Officers (CFLEO) and describes the agencies, functions, sex, and race of these officers. The data cover federal officers with arrest and firearm authority in both supervisory and non-supervisory roles employed as of September 30, 2016. The Bureau of Justice Statistics (BJS) administered the CFLEO to 86 federal agencies employing officers with arrest and firearm authority. The data do not include officers stationed in foreign countries and also exclude officers in the U.S. Armed Forces.
Curated
Simple Crosstabs

Census of Federal Law Enforcement Officers (CFLEO), [United States], Fiscal Year 2020 (ICPSR 38667)

Released/updated on: 2023-05-10
Geographic coverage: Puerto Rico, United States, Guam, Virgin Islands of the United States, American Samoa, Northern Mariana Islands
The 2020 Census of Federal Law Enforcement Officers (CFLEO) collects information from federal law enforcement agencies that are authorized to make arrests and/or carry firearms. Data describe the number of officers employed by the agencies, the demographic characteristics of the officers, the functions of the officers, as well as hiring policies, screening techniques, equipment, and use of force techniques employed by these agencies.