The chairman of the Policing Board has voluntarily gone to the PSNI to answer questions about a controversial north Belfast land deal in which his company is linked.
Barry Gilligan insists he has not been involved in any wrongdoing and has consistently pledged full co-operation with police investigating a deal involving the site at Nelson Street.
The Housing Executive, which is responsible for social housing provision in Northern Ireland, called in the police last March in connection with the site, which is owned by Big Picture Developments. Mr Gilligan is listed as one of its directors.
Last week police searched Mr Gilligan's office at Policing Board headquarters and his home in Belfast.
"Searches have been conducted in Belfast as part of an investigation into matters concerning development land at Nelson Street. A number of items have been removed for examination from an office and a house," the PSNI said in a statement at the time. "Police inquiries are continuing."
A PSNI spokeswoman confirmed the searches had taken place in connection with an ongoing investigation by the police service's Organised Crime Branch.
Mr Gilligan has been on leave from the board following successful heart surgery earlier this year and had been due to return to work. However, he has now delayed doing so until next month. He has already confirmed he will seek to remain as Policing Board chairman despite some unionist calls for him to reconsider in light of the controversy.
Mr Gilligan issued a statement following the searches at his home and office in which he pledged to co-operate with the police and confirmed he would present himself at a mutually convenient time to help them with their inquiries.
"My fellow directors and I have made, and continue to make, ourselves and our company files totally available to the PSNI in order to clear matters up as speedily as possible, confident that we will be completely vindicated," he said. "To that end, I will voluntarily meet the PSNI in the coming days at a mutually convenient time."
Following the searches of Mr Gilligan's office and home last week, it has emerged the Housing Executive once sought the Nelson Street site for a social housing project. The area had been designated for such a scheme.
BBC Northern Ireland today reported Mr Gilligan had been called to advise a local community group that was interested in a social housing plan. However Big Picture Developments later acquired the site.
The BBC further reported last night the Housing Executive apparently changed its position on social housing provision at the site and communicated this to planners.