This is bad. I hope hes just tired. 9NEWS.com | Denver | Colorado's Online News Leader | State trooper pulled over, arrested on DUI charges DOUGLAS COUNTY - A Colorado State Patrol Trooper, driving a marked patrol car was taken into custody for investigation of driving under the influence of alcohol Monday morning. Forty-eight-year-old David Dolan has been booked on charges of DUI and prohibited use of weapons. A spokesperson for Douglas County Sheriff's Office says Douglas County dispatch received multiple calls from people reporting that a marked Colorado State Patrol vehicle was driving erratically northbound on Interstate 25, just before the Castle Rock area. Dolan was pulled over at Platte Canyon and C-470 around 7:05 a.m., shortly after a Douglas County deputy spotted his car driving westbound on C-470 at Santa Fe. Dolan, who was in full uniform, was arrested and is being held at Douglas County Detention Center. SKY9 flew above the area of westbound C-470 and Santa Fe just after 7 a.m. where the patrol car was stopped by Douglas County Sheriff's SKY9 video showed a state trooper being taken out of the patrol car and walked by deputies to the deputies' vehicle where he was handcuffed and put in the back of the vehicle.