A former Colorado State Trooper is being accused of bias during investigations. The Daily Sentinel says State Patrol District 4 commander Maj. Barry Bratt sent a letter to Mesa County DA Pete Hautzinger describing an internal investigation involving Don Moseman. Hautzinger hundreds of cases in Mesa County involving Moseman are expected to be re-examined and some could be dismissed altogether. One defense attorney tells the paper cases from misdemeanor drunken-driving offenses to vehicular- homicide investigations may be at issue.