Police would rely on the courts to prosecute traffic infringements or resort to giving lawbreakers a stern telling off should the system which processes all traffic tickets stop working.
The Police Infringement Processing System (PIPS) processes on average around 121,000 infringements each month.
But Police and the NZTA have previously warned Government ministers in a briefing that it is being kept going at a significant cost to police and there is a risk it could stop working completely.
In an Official Information Act response to the Herald, Superintendent Steve Greally, Police national manager road policing, said police were paying an average of $350,000 a year on upgrades to the system in addition to the annual maintenance and service management costs of about $1.1m.
Asked what would happen if the system stopped working, Greally said: "New Zealand Police may still enforce traffic offending by way of other avenues; such as issue of summonses in appropriate cases and use of formal warnings in matters that are less serious."