The information we have is that only one of those involved in the recent attacks in London and Manchester had spent time in prison. That dated back to 2003 and there was no evidence to suggest that that man had been radicalised in prison. We clearly want the strongest possible joint work between the police, the Prison Service and the probation service. I believe that what we have at the moment is strong, but there are always lessons that can be learned and improvements that can be sought. We are committed not to be complacent but to continue with vigilance and determination.