Green co-leader Metiria Turei won't admit whether she confessed to the Law Society she had committed benefit fraud when she applied to be a lawyer.
Turei last week revealed she was a benefits cheat when she was a young solo mother in the 1990s.
She admitted lying to Work and Income about her living arrangements in order to receive a higher welfare payment than she was entitled to, she says in order to put food on the table for her young daughter.
Turei was a law student at the time, graduating in 1999 before working as a commercial lawyer for Simpson Grierson in Auckland.
As a condition for being allowed to practice as a lawyer, graduates must pass a "fit and proper person" test administered by the Law Society.