G8: £50million cost of policing The fact that so far they have not been able to do that I think is a tribute to the work of the PSNI (Police service of Northern Ireland) to ensure that we have a safe and secure summit. If that kind of preparation had not been done and there was a terrorist attack had taken place that would have been catastrophic - you have to plan for the worst. Without that excellent preparation probably we would be seeing more public order issues than we have so far. And God forbid may be we might see some problems with the DR (Dissident Republican) threat as well. It is not just a coincidence that we have had a peaceful summit so far and it is in large part because of the hard work done by the PSNI and its partners to make sure it has gone well. Miss Villiers said there had been a number of raids by the PSNI last week which had "yielded a number of recoveries in terms of ammunition, guns, explosives." She added: "Two or three produced some quite serious recoveries of munitions of weapons." There was no indication about how the weapons were planned to be used, she said.