Available data indicates that a relatively small percentage of undocumented immigrants have committed crimes (excluding the fact that they are in the country without authorization)."
"Nowrasteh on Wednesday published a new report that relied on fresh data on homicide convictions that he said eliminated double-counting.
It confirmed that undocumented immigrants had a lower homicide conviction rate (2.4 per 100,000 undocumented immigrants) than native-born Americans (2.8 per 100,000).
Legal immigrants had the lowest homicide conviction rate — 1.1 per 100,000 legal immigrants."
