DAVID CAMERON would be “acting unconstitutionally” by imposing the Trade Union Bill on Wales, according to a “damning” legal opinion published yesterday by the TUC. 

The Prime Minister refuted suggestions last month that the Welsh and Scottish governments could block parts of the Bill, insisting it was “not a devolved matter.”

But an independent assessment carried out for the Wales TUC finds it does infringe on the delivery of devolved public services, such as health, schools and local government.