“A security expert claims the Hatton Garden thieves could have scouted London’s famous jewellery quarter weeks before one of Britain’s biggest ever heists.
Police are already running a ‘painstaking’ forensic examination that will take two days after an Easter weekend raid on at least 60 safety deposit boxes.
But a man who has worked for security firms for several years said officers could have to trawl through footage weeks ago to find clear images of the thieves.”