Ten people were arrested Thursday in a law enforcement sting outside the Sonoma County Courthouse in Santa Rosa targeting habitual drunken drivers, people with suspended licenses or those without licenses.

From 8:30 a.m. to noon, undercover officers with the "Avoid the 13" campaign followed people from the courtroom to the parking lot to make sure they were not driving, said Sgt. Ken Savano of the Petaluma Police Department traffic unit.

While some took buses or had designated drivers, 10 got behind the wheel and drove off, only to be stopped by motorcycle officers waiting north and south of the complex, Savano said.

Of the 10 drivers arrested, six were for suspicion of driving on a suspended license. All but one of them were suspended for a prior DUI offense, Savano said.

The remaining drivers were arrested on suspicion of driving without a license, and one driver had outstanding misdemeanor warrants, he said.

Ten vehicles were towed and nine were impounded for 30 days, Savano said.

Sonoma County's 13 police agencies worked together on the sting.

The program is paid for by a grant from the California Office of Traffic Safety through the National Highway Traffic Safety Administration.

-- Paul Payne