Sinn Fein announced their plan for the investigation into the Renewable Heat Incentive scandal with no agreement from their partners in government, the DUP.
Sinn Fein Health Minister Michelle O'Neill, chief whip Caral Ni Chuilin and Gerry Kelly presented the plan to the media on Friday morning. They said the inquiry should be fronted by a judicial figure and witnesses should be compelled to attend.
Ms O’Neill said: "Compellability must be at the heart of the investigation". She repeated that Arlene Foster "needs to stand aside".
She added: “Martin (McGuinness) has his health issues, but despite all of that, he’s obviously still at the core of all these issues and has been involved in meetings all week.”
The botched RHI scheme is £490m over budget.