Highly confidential athlete and staff notes from a 2016 Olympics debrief were given to Peden by Carter.
The Tonga prop will line up against his former side at Mt Smart Stadium this weekend.
Michael Heron QC has spent the past five months looking into the culture at CNZ, in the wake of revelations uncovered by 1 NEWS.
The gruesome injury initially forced Jona Nareki from the field, before he returned late on.
In his second Test in charge of New Zealand, Michael Maguire delivered the first win over Australia since 2015.
The former captain made his international return in last night's 26-24 win over Australia, having missed last year's World Cup.