Wrist-Worn GPS Monitors Now Fastest Growing Electronic Monitoring Type Used by ICE
(14 May 2024) The number of immigrants monitored by Immigration and Customs Enforcement (ICE) using BI’s new VeriWatch wrist-worn GPS device is the fastest-growing tool in ICE’s toolbox of electronic monitoring technologies. One year ago, in May 2023 when ICE first released data on its pilot program to test the technology in Denver, just 50 immigrants were on this technology.

The latest data now show that as of May 4, 2024, 2,153 immigrants—up from 1,441 two week prior—are now monitored using VeriWatch. ICE’s growing use of the VeriWatch is reflected across the country, with the three largest cohorts of immigrants on VeriWatch concentrated in ICE’s regions headquartered in Harlingen (324), Los Angeles (298), and Seattle (294).

ICE’s detention numbers are up slightly to 36,603 as of May 5, from 34,373 two weeks ago. ICE arrests accounted for 34 percent of immigrants detained (or 12,336 total), up from 29 percent at the end of December.

Highlights from data updated in TRAC's Detention Quick Facts tool show that:

  • Immigration and Customs Enforcement held 36,603 in ICE detention according to data current as of May 5, 2024.
  • 22,575 out of 36,603—or 61.7%—held in ICE detention have no criminal record, according to data current as of May 5, 2024. Many more have only minor offenses, including traffic violations.
  • ICE relied on detention facilities in Texas to house the most people during FY 2024, according to data current as of April 29, 2024.
  • ICE arrested 8,434 and CBP arrested 15,534 of the 23,968 people booked into detention by ICE during April 2024.
  • South Texas Fam Residential Center in Dilley, Texas held the largest number of ICE detainees so far in FY 2024, averaging 1,822 per day (as of May 2024).
  • ICE Alternatives to Detention (ATD) programs are currently monitoring 184,206 families and single individuals, according to data current as of May 4, 2024.
  • San Francisco's area office has highest number in ICE's Alternatives to Detention (ATD) monitoring programs, according to data current as of May 4, 2024.

TRAC’s Immigration Quick Facts provides the latest data on immigrant detention, immigration court cases, and immigration prosecutions in federal court. Each page includes several key data points alongside a graphic or table, a short description for context, and a link to more data. Visit for more information.

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