Looks like Paul Smith, a constable at Holborn police station, caught a case of reefer madness. He's been charged with 15 counts of cannabis theft -- from the station. While securing his stash from the evidence locker, the pothead policeman must have slipped up. Details haven't yet been released, but we hope he had a billy club bong, Snoop Dogg on his iPod and an inability to stifle his giggles every time someone said 420.......