A new system for tracking high-risk and repeat drink-drivers has been launched today.
The Booze Bus Biometrics system means police can take electronic fingerprint scans and photographs and see within minutes if someone who they intend to charge, has previous convictions.
The Police Minister, Michael Woodhouse, says that will ensure alleged offenders have the appropriate charges laid against them.
He says fingerprints and photographs have been taken on booze buses for several years to check identities, but the new system will make that process a lot faster.
Mr Woodhouse says the data collected will only be retained if there is a conviction.