The Independent Police Conduct Authority has confirmed that one of its recent appointments has been the subject of a conduct inquiry.
Pieter Roozendaal, a former police inspector, is one of four investigators the IPCA has recently appointed, taking its total number of investigators from five to nine.
In 2005, Mr Roozendaal quit as head of an inquiry into claims of a sick police culture in Counties-Manukau after revelations he was investigated and cleared in the 1980s for jokingly asking a prisoner if he had "had his beating yet."
A former senior Christchurch police officer, Colin Campbell, who has long questioned the independence of inquiries into police conduct, says Mr Roozendaal's appointment to the IPCA is inappropriate.
However, an IPCA spokesperson says it was aware of the incident.
They say Mr Roozendaal regrets making the comment, which he has had to live with since, and otherwise, he has had an exemplary career .