Larry the cat arrives at Downing Street - in pictures

Larry poses for photographers – on a sofa of the finest Conservative blue, naturally – and displays the set of paws ready to smack down any unsuspecting rodents Photograph: Carl Court/AFP/Getty Images

There's definitely a joke about unlawful detention in here somewhere Photograph: Alastair Grant/AP

So ministers arrive by chauffered limousine, while Larry is stuck inside a covered box in the back of a van. Tsars and serfs, isn't it? Photograph: Carl Court/AFP/Getty Images

Getting accustomed to his new home, Larry gambols past the photographs of past British PMs - including Clement Attlee (bottom left) - in No 10. Suggestions senior Lib Dems insisted on yellow walls as part of the coalition agreement are entirely unfounded Photograph: Mark Large/AFP/Getty Images

Larry guards the window, and has a good look for rats, policemen and overexcited political correspondents doing pieces to camera Photograph: Mark Large/AFP/Getty Images

David Cameron described the four-year-old tabby as a 'great addition' to the Downing Street team, and said he would charm dignitaries from around the globe. But not if they try to pull his tail Photograph: Mark Large/AFP/Getty Images

Larry's new title - in all seriousness - is Chief Mouser to the Cabinet Office, a sort of unofficial pest control post. Mouser without Portfolio was reportedly rejected out of hand Photograph: Reuters

And after a tiring day getting used to his new surroundings, Larry has a good old relax in preparation for a first big night of ratting Photograph: Mark Large/AFP/Getty Images