At least they didn't find any narcotics. Or did he presumably dispose of a troublesome wife in a wood chipper, ambush a romantic rival, practice medicine without license, get himself intentionally locked out of the cockpit by an F/O after heading back to launch an impromptu passenger interrogation. Would you believe me if I told you I know a former inspector arrested for planting fake bombs behind shampoo and under meat at grocery stores just to watch people react?
KCM, made sense, until it didn't.