No photo, no service.
A rise in violence and racial abuse has led a Northland publican to photograph punters and scan their IDs or they won't be allowed a pint.
The Patronscan technology is increasingly common in Australia and other countries, and more bars and nightclubs here are looking to similar systems to make their venues safer.
But a digital privacy expert fears that with essentially no laws governing their use they are open to abuse.
Hamish Cardwell filed this report.
