An investigation into overspending by the former head of the Waikato District Health Board has cost the hospital almost $150,000.
Nigel Murray resigned in October after an investigation showed he'd spent $218,000 on expenses over three years.
Papers released by the DHB under the Official Information Act show that the investigation into Dr Murray cost another $145,000 - including $55,000 for an investigator.
The DHB estimated about 950 staff hours were spent collating and compiling information relating to Dr Murray's expenses, at a cost of around $69,000.
An additional $10,000 went towards forensic investigation costs and another $10,000 was spent on public relations advice