Overstay math, inspection notes, that secondary referral in 2019 — CBP's records decide questions years later, and their version occasionally differs from what happened. Read it before an adjudicator does.
Arrival and departure records, I-94 history beyond what the public portal shows, TECS lookout and encounter records, secondary-inspection notes, and electronic-device search records. Status calculations, admissibility findings, and credibility judgments all lean on this set.
Fix errors on the record's own terms: demonstrably wrong entries support correction requests, and a documented correction beats an argument with a database every time thereafter.
Usually yes — the public portal is a thin window over deeper systems. FOIA reaches the systems.
Device-search records exist and are requestable; expect law-enforcement redactions and appeal them where boilerplate.
Different agency, different systems, different request — one per agency, coordinated, is the standard package for a full picture.