It appears that the DUI patrol actually resulted in many arrests for things other than DUI. Does this mean that the police were running background checks even on people who exhibited no signs or symptoms of alcohol consumption or impairment?

DUI patrol's busy night - The Reporter: "A DUI saturation patrol conducted by the Vacaville Police Department on Friday netted multiple arrests, police said.

They included the arrest of one person on suspicion of DUI and narcotics, another for violation of parole, a third arrest on narcotics charges and a fourth arrest for an individual with outstanding warrants. Four additional arrests were made for driving without a license.

In all, police said, seven vehicles were towed and 30 citations were issued."

DUI saturation patrols are a feel good measure that wastes resourced and does little good for removing DUI drivers from the roads as compared to regular patrols.