What the officer carries. A single Expo-built workstation that handles the whole encounter from passport open to traveller cleared. 01 MRZ scan with torch, continuous autofocus and check-digit validation — never opens a record on a failed checksum. 02 NFC ePassport read with BAC, extracting the on-chip photo for a tamper-resistant comparison. 03 Verify holder by camera against the BMIS reference photo, with similarity score and review thresholds. 04 Offline cache of recent lookups and geofenced session — credentials only work inside the assigned post.