David J. Bier, the institute’s director of immigration studies, previously reported in June that 65% of people taken by US Immigration and Customs Enforcement (ICE) had no convictions, and 93% had no violent convictions.

Monday evening, Bier shared a new nonpublic dataset leaked to Cato. Of the 44,882 people booked into ICE custody from when the fiscal year began on October 1 through November 15, 73% had no criminal convictions. For that share, around two-thirds also had no pending charges.

The data also show that most of those recently booked into ICE detention with criminal convictions had faced immigration, traffic, or vice charges. Just 5% had a violent conviction, and 3% had a property conviction.