The Glenn Inquiry Board has commissioned an independent review of how it handles sensitive information - and has asked members to stay until they learn the results.
Thirty eight international experts have yet to decide whether they will support the inquiry, which aims to address domestic violence by examining victims' evidence of how the system has failed them.
In recent weeks, the executive director and several panel members have resigned, amid claims that information given to the inquiry could be misused.
The review will be conducted by Women's Refuge chief executive Heather Henare and Rethinking Crime and Punishment chief executive Kim Workman. It is expected to take several weeks.