MADISON, Wis. (WRN) — Wisconsin law enforcement is working through the holidays to deter drunk driving.

Additional patrols will be watching the roadways in the state during the annual Driver Sober or Get Pulled Over campaign. Wisconsin State Patrol trooper Anna Schopp tells Fox 6 Milwaukee that Wisconsin saw 403 crashes involving impaired drivers last holiday season.

“We’re trying to make those traffic stops, trying to stop those impaired drivers, before they end in tragedy,” Schopp said.

Those crashes led to nine deaths and 169 people injured. Schopp reminds travelers to use ride-share services or designated drivers if necessary.

“Alcohol may affect everybody differently, so if you think that you might be impaired, you probably are,” Schopp said.

She also encourages calling 911 if you spot an impaired driver on the road.