The police's handling of allegations that Sinn Fein president Gerry Adams withheld information on his sex abuser brother should be examined by Northern Ireland's police ombudsman, a Stormont minister has said.
Health Minister Edwin Poots stressed the need for the probe a day after a separate review was launched into the role of prosecutors who decided not to bring charges against the republican leader.
Mr Adams has been facing mounting criticism over what he told police about his paedophile brother Liam and when.
But today he insisted that he had committed no offence and accused rivals, including Mr Poots' Democratic Unionist Party, of using his family for political ends.
Liam Adams was last week found guilty of a series of rape attacks on his daughter Aine in the 1970s.
During a first trial earlier this year, which ultimately collapsed, the Sinn Fein leader, now a TD in the Irish Republic, claimed he first heard of the sex abuse claims in 1987 and, 13 years later, his younger brother admitted his guilt to him.
The high profile republican has been criticised for not informing the police at the time of the revelations, with his statements to detectives not coming until 2007 and 2009.
Mr Poots told the Northern Ireland Assembly that the police ombudsman should examine the PSNI's role in the case.
"I welcome the fact that there was a conviction in that case and the good work that was carried out by the PSNI and the Public Prosecution Service in bringing Liam Adams to justice but I do think that when it comes to the other issue of the cover-up of the crime, that the PSNI have questions to answer and they need to have those questions answered in a very public way.
"That's why I believe the ombudsman needs to look at the work of the PSNI to date.
"It is a very, very unusual set of circumstances and I think the PSNI should be asking for the ombudsman to look at their work, and, if they don't, I will.
"And I will be looking for independence to be applied in this case so that no one, and I mean no one in the public, has any sense that anybody is above the law."
Yesterday, Director of Public Prosecutions Barra McGrory QC announced that he had asked Northern Ireland's Attorney General John Larkin to examine the PPS's role in the case.
David Young and Lyndsey Telford