kuenssberg, bbc news, westminster. let's return to leigh—on—sea, and join our home affairs correspondent, daniel sandford. bring us up—to—date with the latest on the investigation. bring us up-to-date with the latest on the investigation.— bring us up-to-date with the latest on the investigation. well, scotland yard's counterterrorism _ on the investigation. well, scotland yard's counterterrorism command l on the investigation. well, scotland i yard's counterterrorism command has only been in charge of this investigation for a few hours but already they'll be bringing their huge resources, experience and expertise to bear will stop they will be hoovering up huge amounts of physical evidence, cctv evidence, phone evidence, computer evidence, the resources they bring really are quite enormous compared to a normal investigation, and of course they will also be liaising with the intelligence service, the security service m15 to try and build up a background of the suspect that is in custody and also any associates. so there is a very large scale investigation under way tonight. but here in leigh—on—sea people are thinking about the sir david that has been their mp for all those