The Public Accounts Committee (PAC) has told Angela Kerins she cannot have any say in the moves to force her to appear.

Solicitors for the former Rehab CEO have written to the Committee, asking if she can have any input in the plans to seek compellability.

But she has been told that the legal process involves TDs only and that she cannot have a say.

Chairman John McGuinness says the Committee might have to wait until the summer recess before a decision on whether it can go ahead with plans to force Ms. Kerins and her predecessor - Frank Flannery - to appear.

He says the official application to force Ms. Kerins to appear has already been lodged.

The PAC announced earlier this month they were to take the unprecedented step of seeking legal powers to force the two former Rehab CEOs to appear.

In April, both Ms. Kerins and Mr. Flannery declined to appear before the Committee. Ms. Kerins' solicitors previously told the Committee that she would not be attending on medical advice due to ill-health.

While Mr. Flannery said while he was willing to attend the PAC, " the agenda as set out has left me with no alternative but to decline the current invitation".

The Committee was also told that Ms. Kerins is threatening legal action if further details of her salary are published.