The Serious Fraud Office would focus on three key areas in Christchurch.
"One is around public awareness - to get people to speak up, to come and contact us, police or other agencies if they see things either within their work or just publicly going on that they have concerns about.''
The second was to use intelligence "a lot more cleverly''.
"You need to analyse data, and the sheer volume of data that happens after a natural disaster means you have to be more sophisticated in the way you look for anomalies that might suggest fraud.''
The third and most important focus was to act quickly.
"Far more quickly than we have in the past.''
Mr Feeley said the office would use methods as unsophisticated as hearing something in a pub.
He said it seemed taboo in New Zealand to "snitch'' but people needed to speak up if they knew about crimes being committed.
"It's New Zealand - we know what's going on and we want to encourage that culture,'' he said.
"It is very, very rare that people commit crimes without someone knowing there is a problem happening.''
Mr Feeley leaves the Serious Fraud Office next month to become the chief executive of the Lakes District Council in Queenstown.