Police have carried out their search warrants on media organisations in the wake of the tea tapes scandal.
TV3, TVNZ and the Herald on Sunday have all been required to hand over audio footage from the day the meeting between John Key and John Banks took place in Auckland.
Yesterday a judge failed to rule whether or not the conversation would be regarded as private.
Police began their raids yesterday, with TV3 and TVNZ spokespeople confirmed they were required to hand over audio, footage and transcripts from the meeting in Epsom.
Radio New Zealand is also being investigated.