A police investigation has resumed into illegal spying activity on Kim Dotcom.
Green Party Co-leader Russel Norman laid a complaint in 2012 after it was revealed that the Government Communications Security Bureau conducted surveillance on him.
It is illegal for the GCSB to spy on New Zealand residents.
In December last year, police told Dr Norman that due to court proceedings involving Kim Dotcom and the GCSB, they could not access the evidence they needed and that was affecting their investigation.
But in a letter dated 1 March this year, police told Dr Norman those issues have been resolved and the investigation into his complaint has resumed.
Police said a number of interviews will take place over the next three weeks.
Russel Norman said on Tuesday he is pleased the investigation has resumed, as it is important those working in the spy agency are accountable for their actions.
"We'd like to get the truth about exactly what happened and why and a clear indication from the GCSB as to how they're going to fix it."
Dr Norman said he still wants an independent inquiry into the matter.