Foreign Office goes on the defensive against No10 as it installs plastic "riot shield" to stop Larry the cat from getting into building

Foreign Office goes on the defensive against No10 as it installs plastic 'riot shield' to stop Larry the cat from getting into building Chief Mouser to the Cabinet found his way into the Foreign Office blockedHe and George Osborne's cat Freya are regular visitors to the buildingBut staff with allergies had complained about their presence William Hague came to their aid and ordered the removal of the barrier By Becky Evans PUBLISHED: 19:01 GMT, 21 February 2013 | UPDATED: 20:03 GMT, 21 February 2013 As Chief Mouser to the Cabinet, Larry is used to having his run of Downing Street. So he was understandably more than a little perturbed today when he found one of his favourite prowling routes blocked by a plastic shield. It appears the Foreign Office, which installed the clear cover, has gone to extreme lengths to stop the No10 employee from snooping around.