By Samuel Montgomery, PA An abandoned Staffie cross puppy has been brought back from the brink of starvation by a Metropolitan Police officer, who now wishes to adopt her permanently. Police were called to Tottenham, north London, a few days before Christmas last year after an abseiling builder spotted a distressed dog through the window of a 12th-floor flat. Response officer Pc Joe Allen attended and, after forcing entry, found the six-month-old puppy cowering under a broken bed frame surrounded by mounds of rubbish. Pc Allen, 27, said: “I saw a blanket shaking and that’s when I knew that we …