Formal charges are expected to be filed against a Sedalia man being held for drug and weapon violations in Pettis County. According to the Pettis County press release, Desmond White, 29, of Sedalia was arrested by the police department shortly before 6:00 p.m. Tuesday for allegations of possession of more than 35 grams of marijuana and felon in possession of a firearm. White is currently on a 24 hour investigative hold until those charges are filed.