A police school instructor in western Japan accidentally stabbed an officer with a survival knife during a role-playing exercise in December and left him hospitalized for days, police officials said Wednesday.While the instructor at the Okayama Prefecture training college has said he did not intend to injure the officer, he was fined 500,000 yen ($4,600) for professional negligence resulting in injury and admonished by his boss.The injured officer quit in January and has filed a damages suit over the case, they said.During the exercise, the instructor played a criminal wielding a Japanese s…READ FULL ARTICLE