The Earthquake Commission says it is investigating an increasing number of complex fraud claims, with many expected to end up in court.
The commission has referred 130 claims to the police, involving 23 individuals, since the September 2010 earthquake.
It says the cases typically relate to contents and dwelling claims but most contents claims have been settled.
The commission is investigating other types of fraud, some of which are quite complex, and it expects to soon refer more files to the police for prosecution.
The commission also looked into a couple of Cook Strait quake claims where there may have been fraudulent activity, but concluded there was no need for further action.