Officer performing his patrol; he misjudged a corner and drove over the berm. The vehicle tipped on side, deploying side airbags. EE climbed out window, walked app. 2 miles back to mine. Upon arrival at security he passed out. Mine EMT's were called and EE noted as being unconscious. All vitals were strong, and EE taken to hospital. EE released w/no medical trtmt or restrictions.