The Dominion Post suggests phone records could turn up the heat on Winston Peters. And indeed they could, but not Owen’s.
Owen as the recepient of the call from Peters would not have the call turn up on his phone records. It is possible he phoned Peters, but the more likely scenario is that Peters phoned Glenn.
The phone records of Peters or his staff are going to be more productive to search, but sadly for Winston they can only confirm if a call was made, they can not prove a call was not made – as it may have been from an unknown phone.
Ministerial Services pay the bills for Minister’s cell phones, landlines and staff cellphones also. As a parliamentary agency they will of course co-operate with the Privileges Committee. So I suggest they be asked to supply the call statements for the dates in questions.