Napa Police are planning special DUI patrols between 6 p.m. Friday and 2 a.m. Saturday while the Napa Town & Country Fair is underway.
In California, alcohol involved collisions led to 1,155 deaths and nearly 24,000 injuries in 2014 because someone failed to designate a sober driver, police said.
Officers will be looking for signs of alcohol and/or drug impairment. If you take prescription drugs, particularly those with a driving or operating machinery warning on the label, you might be impaired enough to get a DUI, police said.
Marijuana can also be impairing, especially in combination with alcohol or other drugs, and can result in a DUI, police said.