A number of people whose homes were raided by police investigating the pre-Christmas Northern Bank raid may try to delay the retirement of the officer heading the investigation.
Detective Superintendent Andy Sproule is due to take early retirement in June.
Mr Sproule was in charge of the Northern Bank investigation when raids were carried out on a number of republican homes in north and west Belfast.
Nothing connected to the robbery was discovered and complaints were later lodged with the Police Ombudsman Nuala O'Loan, who has the right to block Mr Sproule's retirement pending the outcome of her inquiries.