In the past few months, politicians and certain media outlets have latched on to a narrative that recent immigrants, especially undocumented ones, are causing spikes in crime. Instead of gathering data and examining the issue empirically, they are making this broad assertion based on highly publicized individual incidents of crime by undocumented immigrants. All acts of violence must be taken seriously. But policymakers should not attribute blame to entire classes of people when individuals commit crimes.

The research does not support a link between immigration and crime, and particularly not the view that immigrants commit crime or are incarcerated at higher rates than native-born Americans. In fact, immigrants might have less law enforcement contact compared to nonimmigrants. Focusing on the facts is imperative, especially given that immigration has become a top issue for voters ahead of the election.

Immigration Is Linked to Lower Crime Rates, Studies Indicate

Substantial research has assessed the relationship between immigration and crime. Numerous studies show that immigration is not linked to higher levels of crime, but rather the opposite. Studies have also examined the impact of the concentration of immigrants in a community on crime patterns, finding that immigration is associated with lower crime rates and an increase in structural factors — such as social connection and economic opportunity — that are linked to neighborhood safety.

When looking specifically at the relationship between undocumented immigrants and crime, researchers come to similar conclusions. Numerous studies show that undocumented immigration does not increase violent crime; research examining crime rates in so-called sanctuary cities also found no discernable difference when compared to similarly situated cities without sanctuary policies. One study that focused on drug crimes and driving under the influence found that unauthorized immigration status was associated with reductions in arrests for those offenses.

The research also shows that overall, immigrants have a similar or even lower likelihood of incarceration compared to native-born Americans, a trend that holds for immigrants from various source countries. For example, one study found that undocumented immigrants are 33 percent less likely to be incarcerated than people born in the United States. Indications of a negative relationship between immigration and crime also emerge when looking at conviction rates.

Read the full article about immigration and crime by Brianna Seid, Rosemary Nidiry, and Ram Subramanian at Brennan Center for Justice.