Elon Musk swears by a forensic science-backed method for weeding out untrustworthy employees, and, even if you’re not a billionaire entrepreneur, it could well help you spot a liar in a matter of secondsElon Musk swears by a forensic science-backed method for weeding out untrustworthy employees, and, even if you’re not a billionaire entrepreneur, it could well help you spot a liar in a matter of seconds