DUP deputy leader, Peter Robinson, says Sinn Féin has to "face up to delivering on policing" and that the British government was satisfied with his party's response to the proposed timetable for devolution.
He was responding to Sinn Féin's chief negotiator, Martin McGuinness, who had said there was no point pretending the DUP had any intention of sharing power with republicans by March.
Martin McGuinness said last night that it was "obvious" Ian Paisley did not agree with the assessment of the DUP's position given by the British prime minister Tony Blair.
That assessment was that, in welcoming Mr Blair's restatement of the timetable, the DUP leader had agreed to it.
Mr McGuinness said the two were not the same and that Sinn Féin needed to hear the DUP “clearly” agree with Mr Blair's assessment.
Nationalists, said Mr McGuinness, would not accept political, legal or policing institutions which are not democratic and accountable to the public.
Mr Robinson said though that Sinn Féin had its own internal difficulties and although the DUP did not want to make their task more difficult, only they could sort them out.