ICE usually finds people through a mix of jail and court records, shared law- enforcement databases, workplace or neighborhood operations, and targeted visits to known addresses. It also sometimes encounters people during broader enforcement actions, but it generally starts with a specific target list or information from other agencies.

Main ways ICE identifies people

  • Local jail cooperation. ICE can learn about people through jail booking systems and detainers, then check immigration status before release.
  • Database sharing. ICE uses information from federal, state, and local systems to match names, fingerprints, arrests, and convictions.
  • Targeted searches. Officers may go to a person’s last known home, workplace, or other address to look for the person on a list.
  • Worksite and community operations. ICE may conduct broader enforcement actions in public places or at worksites, where some arrests happen incidentally.
  • Tips and follow-up leads. Agents may ask family members, neighbors, coworkers, or managers where someone is, and that can sometimes lead to further arrests.

What this means in practice

ICE is not usually “finding” people randomly; it often starts with records or a target list, then uses field checks to locate someone. In some cases, arrests happen because a person is encountered during a sweep or a stop meant for someone else.

Legal and public concern

Civil-liberties groups and immigration advocates say some tactics raise concerns, especially when ICE relies on broad stops, information sharing, or operations that can pull in bystanders. The exact boundaries can be controversial, and reporting shows ongoing debate over how aggressively ICE is using these methods in 2025 and 2026.

Bottom line

The short answer is that ICE mostly finds people through records, shared databases, jail notifications, and targeted field operations , not by guessing where someone might be.

If you want, I can also turn this into a cleaner “news-style quick scoop” version.