Index/Organizations/National Institute of Justice

National Institute of Justice

United States institute of the Office of Justice Programs, Department of Justice

Fact-Checks

77 results
Jan 16, 2026
Most Viewed

Illegal migrant crime in US

Research across federal datasets and independent scholars shows that immigrants — including those in the country without authorization — are not more likely to commit crime than U.S.-born residents; m...

Jan 15, 2026
Most Viewed

Do undocumented aliens do less crimes than us citizens

The balance of rigorous, peer‑reviewed research shows that undocumented immigrants commit crimes at lower rates than U.S.-born citizens: multiple studies using arrest and incarceration records—most no...

Dec 17, 2025
Most Viewed

Cyber stalking organized harassment cases

Federal prosecutors filed 412 federal cyberstalking cases between 2010 and 2020, with filings rising to a peak of 80 cases in 2019 before a slight fall in 2020, illustrating growing federal attention ...

Nov 28, 2025

what percent of American crimes are cimmitted by immigrantsi

Academic and policy research in the provided reporting shows immigrants in the U.S. — including undocumented immigrants in many studies — generally have lower incarceration, arrest, and offending rate...

Nov 22, 2025

what is the percentage of crime in the united states caused by illegal immagrants compared to US citizes

Available reporting and academic studies consistently find that immigrants — including unauthorized immigrants — commit crimes at lower rates than U.S.-born citizens; a Texas-based federal study found...

Dec 8, 2025

Are undocumented immigrants more likely to commit crime than u.s. citizens per capita?

Multiple peer-reviewed and government-funded studies find that undocumented immigrants are not more likely to commit crimes per capita than U.S.-born citizens; several large analyses report lower arre...

Oct 20, 2025

What are the demographics of mass shooters in the United States over the past 20 years?

Recent analyses give a mixed picture: . One media analysis places racial distribution roughly in line with population shares—53% White, 21% Black, and —but that figure comes from a single 2025 compila...

Dec 16, 2025

How do crime rates compare by race after adjusting for poverty and neighborhood factors?

Research that adjusts crime or homicide rates for poverty, neighborhood, and related socioeconomic factors finds that disparities by race shrink but do not universally disappear: some studies report p...

Nov 1, 2025

How do 2024 crime rates of illegal immigrants vary by state and region?

Recent, multi-source analyses consistently show that immigrants — including undocumented immigrants — are arrested and incarcerated at lower rates than U.S.-born residents in the datasets examined, wi...

Dec 18, 2025

Do right wing or left wing commit more mass shootings

Available research and databases do not support a simple tally that attributes most U.S. mass shootings cleanly to either “right wing” or “left wing” actors; many mass shootings are non‑political, the...

Dec 10, 2025

How do sexual assault rates for Native American women compare to other racial groups in 2025?

Available sources in 2025 consistently show American Indian and Alaska Native (AI/AN) women face far higher rates of sexual violence than other U.S. racial groups: most estimates center on about 2.5 t...

Nov 19, 2025

How do crime rates compare between undocumented immigrants and U.S. citizens in 2025?

Major recent studies and reviews show undocumented immigrants in the U.S. are arrested and incarcerated at lower rates than U.S.-born citizens: a Texas-based NIJ-funded analysis found undocumented peo...

Nov 4, 2025

How many right-wing extremist groups are currently active in the USA?

There is no single authoritative count of “active right-wing extremist groups” in the United States; major datasets and government reports use different definitions, categories, and collection methods...

Nov 19, 2025

percentage men rape

Estimates of how many men are raped vary widely by dataset and definition: some U.S. surveys find about 3% of men have experienced attempted or completed rape in their lifetimes (RAINN citing older NI...

Nov 20, 2025

What do 2020–2025 studies show about crime rates among undocumented immigrants vs U.S. citizens?

Recent peer-reviewed and policy research from 2020–2025 consistently finds that immigrants — including undocumented immigrants in studies that can identify status — have lower arrest, conviction, and ...

Nov 23, 2025

Which states have the highest rates of illegal immigrant-related crimes in 2024?

Available federal and academic data do not produce a clear, state-by-state ranking of “illegal immigrant–related crimes” for 2024; U.S. Customs and Border Protection publishes counts of “criminal alie...

Nov 15, 2025

Comparison of far-right and far-left domestic terror groups in the US

Recent research and government reviews present competing pictures of U.S. domestic terrorism: long-run empirical reviews and government summaries show far‑right extremists have produced more fatalitie...

Nov 4, 2025

Do immigrants commit crimes at higher rates than native-born Americans 2023 studies?

Multiple recent studies from 2024–2025 converge on a clear finding: across several measures and time frames. These conclusions are supported by analyses using different datasets — the American Communi...

Dec 17, 2025

Do immigrants in the US commit more crimes than citizens?

Multiple recent, peer-reviewed and government-linked analyses find that immigrants — including undocumented immigrants in Texas studies — have lower arrest, conviction and incarceration rates than U.S...

Nov 22, 2025

What is the crime rate per capita of undocumented immigrants in the United States compared to the general population?

Available reporting and peer-reviewed analyses consistently find that undocumented immigrants in the U.S. are arrested and convicted at lower rates than native‑born Americans: an NIJ‑funded Texas stud...