At least 16 people are expected to object to the renewal of private investigator Peter Gibbons' licence at an unprecedented hearing in Dunedin next week.
The hearing, set for three days from Monday in the Dunedin District Court, will decide whether Mr Gibbons and Graeme Scott, of Mainland Information Consultants, are "fit and proper" to be private investigators.
An Independent Police Conduct Authority Report, released on Sunday, criticised Mr Gibbons' actions during his investigation of ACC claimant Bruce Van Essen.
Mr Gibbons, through Mainland Information Consultants, had the contract to investigate allegations of fraudulent behaviour by ACC claimants on behalf of the state-owned agency.
The report followed an investigation into complaints made against police by Mr Van Essen after a search of his home in 2006.
Mr Van Essen believed the number of objections to the renewal of Mr Gibbons' licence showed his case was not an isolated one.
He would produce at the hearing about 400 documents questioning whether Mr Gibbons was fit to be a private investigator, he said.
Five people from Southland will be among the 16 objectors at the hearing.
Dunedin lawyer Peter Sara, who has dealt with ACC cases for some years, said he knew of about seven other people who had "similar issues" with Mr Gibbons.
When contacted, Mr Gibbons said he could not comment until after the hearing, but that his "reputation, business and livelihood" were at risk.
