Off-duty St. Charles County deputies will no longer help out when the National Highway Traffic Safety Administration wants to conduct roadside impaired driving checkpoints, as the did last weekend.
Sheriff's Lieutenant Dave Tiefenbrunn told the St. Louis Post-Dispatch the off-duty deputies flagged motorists to pull over so that NHTSA staff could offer them cash in exchange for submitting blood and saliva samples as part of a study. Tiefenbrunn said even though the survey was voluntary, the public might not have known they had a choice.
The ACLU and officials in other states have raised concerns about the legality of using uniformed officers to help.
Police say a car pulled in front of the officer who was driving in his personal car just after midnight at Hampton and Milentz in St. Louis Hills.
The man has been a police officer since 1993.