Examination Candidate Biometrics Capture

Challenge

Every candidate, every centre, four weeks

Candidate identity had to be captured consistently at examination centres across the whole country, inside a fixed four-week window, by field teams working far from stable power and connectivity.

• Capture at every examination centre nationwide
• A fixed four-week delivery window
• Field sites with unreliable power and connectivity
• Consistent fingerprint and photograph quality across teams
• Secure handling of candidates' personal data

Solution

Offline-first biometric capture kits

We equipped and trained field teams with mobile capture kits that record fingerprints and photographs offline, check quality at the point of capture, and synchronise to a central store when a connection is available.

• Mobile fingerprint and photograph capture
• Point-of-capture quality checks
• Offline-first storage with later synchronisation
• Central de-duplication and record store
• Field team training and deployment plan
• Encrypted transfer of candidate records

• Biometric capture SDKs
• Android capture devices
• Offline-first architecture
• Java/Spring Boot backend
• PostgreSQL
• Encrypted storage

What changed

• One verified biometric record per candidate
• Capture that works without a network connection
• Consistent data quality across field teams
• A secure central record for downstream verification