Two reviews of how Gerry Adams interacted with the authorities during the investigation of sex abuse allegations by his niece, Áine, against her father are expected in Northern Ireland.
Attorney General John Larkin has been asked to carry out a review by NI Director of Public Prosecutions Barry McGrory.
The Police Ombudsman's Office has also become involved.
It has received a complaint that police did not properly investigate a witness statement made concerning an allegation of child sex abuse.
Yesterday in the Stormont Assembly, Minister of Health and DUP member Edwin Poots said Ms Adams had been let down by the police and by her uncle.
Mr Poots had criticised the Sinn Féin president over how he provided information about the abuse to the authorities.
He also called on Deputy First Minister Martin McGuinness, Sinn Féin MEP Martina Anderson, and MLA Sue Ramsey to "step up to the mark".
The DUP minister said the named Sinn Féin members and others had once called for the resignation of Cardinal Seán Brady to resign over his handling of clerical abuse issues.
Last week, a jury convicted Liam Adams of raping and abusing his daughter Áine when she was a child, between 1977 and 1983.
He is in prison awaiting sentencing in three weeks.
During a trial earlier this year, Gerry Adams gave evidence that his brother had confessed to him about the abuse during a walk in the rain in Dundalk in 2000.
Mr Adams also said in evidence that he told the police about the admission in 2009.
At a Sinn Féin news conference in Dublin yesterday, Gerry Adams said he knew he had committed no offence over the case and that he had co-operated fully with the police, the Public Prosecution Service and the courts.
The review by Mr Larkin may be completed before the end of the month.