Woolwich attack: Tories and Labour should join forces push through 'snoopers' charter' If the Liberal Democrats maintain their opposition to it, I think there is a case for the Conservative party exploring the possibility of passing that legislation with support from the Labour party. The Labour party will support it in the national interest, I think that bill could be an important element in helping to protect people from attacks of this kind and if it is possible to pass it through Parliament in the national interest by Conservative and Labour votes I think that is something that should be explored. It comes as it emerged the Deputy Prime Minister was warned that blocking the bill could come back to haunt him just days before the murder of soldier Lee Rigby. Liberal Democrat Lord Carlile, who until 2011 was the independent reviewer of government anti-terror laws, said he was "shocked" at Mr Clegg's "political" decision. Lord Carlile told Murnaghan on Sky News: "We don't know whether if that bill had been enacted two years ago it would have prevented this incident. What we can certainly say is that it might have done and what we can absolutely say for certain is that if the communications data bill, with the safegaurds that were agreed in the last session of parliament, was introduced then it would be very likely to prevent some attacks of this kind in the future. He added: "The reason it was vetoed, as Nick Clegg the leader of my party knows very well, was purely political because of demands from inside the Liberal Democrats." Lib Dem deputy leader Simon Hughes said there is "no evidence at all" that the communications bill could have prevent the Woolwich atrocity. He the programme: "The evidence base isn't as clear as I think he would argue it is."