DUP MP Nigel Dodds has questioned whether enough time exists for Sinn Féin to prove its support for policing before the March 26th deadline for restoring devolution.
Yesterday, the republican party voted to endorse the PSNI at its special ard fheis in Dublin, a move that has been widely welcomed in Dublin and London.
The DUP has given it a guarded welcome, but says Sinn Féin must demonstrate its support for the police service before it will agree to any power-sharing arrangements.
Speaking today, Mr Dodds questioned if enough time existed for this proof to be forthcoming.
He said Sinn Féin was failing to take a clear-cut decision, adding: "If they are going to stick to this policy, then there will certainly be no delivery by March 26th and therefore there can't be time for the testing."