A formal complaint about Mr Sutton's behaviour was received 10 days later and, following the subsequent investigation, Mr Sutton resigned.
Last night, the commission refused to say whether the complainant was among the senior staff who first raised concerns.
Asked what remedial actions were discussed with Mr Sutton, the commission said it would not comment, again citing confidentiality because it was an employment matter.
The commission's confirmation of wider concerns about Mr Sutton's behaviour comes after a source close to the complainant told the Herald two weeks ago that the complaint was filed not just because of Mr Sutton's behaviour towards her, but because there was "a pattern of behaviour that drove her to take a stand".
"She was fed up with what she and other staff had put up with over time," the source said.
Yesterday, Mr Sutton would not comment when contacted by the Weekend Herald.
The commission said the affair had prompted a review of its guidance to public servants on bullying and harassment.