Sinn Féin: 'Unacceptable' that public servants not appearing before Oireachtas Committees

Sinn Féin have threatened to obstruct Government business if public servants continue to refuse to appear before Oireachtas Committees.

Dáil deputy leader Pearse Doherty has hit out at the secretary general of the Department of Public Expenditure Robert Watt who has refused to appear before the Finance Committee to answer questions on the National Children's Hospital overspend.