FLINT, Mich. (AP) - A Michigan sheriff is using roadway checkpoint warnings as part of an effort to curb the flow of illegal drugs into and through the Flint area.
Sheriff Robert Pickell's drug team has used the tactic several times in recent weeks. On Tuesday, a truck bearing a sign warning of a sheriff's checkpoint was parked along Interstate 69.
The drug team watches for a motorist who sees the warning to make an illegal U-turn, for example, and pulls them over.
Undersheriff Chris Swanson says dogs are used by the team known as "The Posse" to sniff around stopped vehicles. He says the department is acting within the law.
The effort is prompting concerns about civil liberties.
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