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Index/Topics/ICE verification practices

ICE verification practices

ICE using databases and verification programs but lacking a single fail-safe method for on-the-spot proof of citizenship

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3 results
Jan 28, 2026
Most Viewed

What data does ICE publish on detainees’ citizenship status and how can researchers get person‑level records?

publishes aggregate and case-level fields that record an individual’s “citizenship” or “citizenship country” across its public enforcement tables, and these fields appear in datasets covering arrests,...

Jan 28, 2026
Most Viewed

How does ICE classify detained individuals by citizenship status in its raw dashboards, and how can researchers compute 'undocumented' from that data?

’s public dashboards and data releases categorize people it encounters and detains chiefly by country of citizenship and by criminality, not by a neat binary “documented/” flag, so researchers must in...

Jan 16, 2026

How have documented cases of mistaken detentions by ICE been resolved and what evidence cleared those detained?

Documented mistaken detentions by U.S. Immigration and Customs Enforcement (ICE) have typically been resolved through administrative case cancellation, release after presentation or verification of ci...

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