Northland Cricket board chair Derek Slatter's joined calls in demanding transparency from New Zealand Cricket.

His plea follows criticism from Sir Richard Hadlee and former NZC president Lesley Murdoch at secrecy surrounding the Deloitte report - which examined options for the future of our T20 competition.

Options included collaborating with Australia's Big Bash League or starting a privatised competition.

New Zealand Cricket chose the latter - naming it NZ20 - with a goal to begin next summer.

Slatter told Heather du Plessis-Allan there's a feeling the truth's being hidden.

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