David FitzGerald, PhD, Co-Director of the Center for Comparative Immigration Studies, in a July 7, 2015 article, "This Proves Donald Trump Is Lying: Here Are the Actual Facts on Immigrants and Crime," available at, stated:

“Here is what you need to know: [legal and undocumented] immigrants are less likely to commit crimes than people born in the United States…

The 2000 census shows that in all racial categories, immigrants are much less likely to be incarcerated than their U.S.-born counterparts. Men born in Mexico had an incarceration rate five times lower than the U.S.-born population as a whole…

If immigrants were disproportionately likely to commit crimes, we would expect to see higher crime rates when and where immigrants arrive. Yet the opposite holds true. From 1994 to 2007, the number of immigrants per capita living in the United States rose from about 9 to 13 percent of the population. At the same time, FBI reports show that the rate of violent crime declined 34.2 percent. The property crime rate fell 26.4 percent.

Cities with large immigrant populations such as Chicago, Los Angeles, Miami, and New York also experienced declining crime rates during this period. The 2008 California study found that cities with relatively larger inflows of immigrants between 2000 and 2005 tended to see lower rates of violent crime. Contrary to the image of crime spilling across the border, FBI records show that rates of murder and other violent crimes are lower in U.S. cities within 100 miles of the border. The lowest murder rate of any U.S. city over 500,000 is El Paso, Texas.”

July 7, 2015