Flutterby™! : Still looks like undocumented immigrants don't cause crime

Is There a Connection Between Undocumented Immigrants and Crime?

There is no exact count of unauthorized immigrants living in the United States. To create estimates, experts at Pew subtracted Department of Homeland Security counts of immigrants with legal status from the number of foreign-born people counted by the Census Bureau. Many organizations and agencies, including the DHS, use this residual estimation method; it is generally considered the best one available. As of 2016, there were an estimated 10.7 million undocumented immigrants nationwide, down a million and a half since 2007.

(And, of course, there's all of the previous data on this.)