Special police units will be deployed around the county this weekend aiming to identify and stop suspected drunken drivers, officials said.
The Avoid the 13 Sonoma County DUI Task Force is gearing up for the Cinco de Mayo weekend, and regular patrol officers also will be on "heightened alert," Petaluma Police Chief Patrick Williams said.
People who are planning to drink as part of holiday celebrations should "play it safe and plan ahead" by designating a sober driver, he said.
Other options are to call a friend for a ride home, take a cab or use public transportation, Williams said.
DUI violators often face jail time, loss of their driver's license and up to $10,000 in fees, fines and higher insurance rates.