The commissioner, Murielle Meltenoven, was one of two officials last week to push for criminal charges against people who alleged her recruitment process was unfair.
Ms Meltenoven, who has pledged her office won't tolerate corruption, summoned three of her accusers to a Port Vila police station last Monday.
One of her accusers, Andrina Thomas from Vanuatu group Women Against Crime and Corruption, said they were interviewed by a panel including Ms Meltenoven.
