Dave Davis

Dave Davis

State Police say an off-duty Baton Rouge police officer was driving his unmarked patrol car Sunday night when he ran a red light and crashed into another vehicle, then became combative with medical personnel and ultimately was arrested on suspicion of DWI.

Dave Davis Jr., 30, was placed on leave from the department Monday morning pending the results of an internal investigation, police spokesman Sgt. Don Coppola Jr. said in a statement. The investigation will determine whether Davis violated BRPD policy by driving his department issued vehicle while off-duty. 

The crash occurred around 8 p.m. Sunday at the intersection of Airline Highway and Siegen Lane. Louisiana State Police troopers executed Davis' arrest and are investigating the crash. 

Troopers wrote in an arrest report that Davis appeared intoxicated when they arrived on scene. He started screaming at EMS workers and firefighters when they tried to help him out of his vehicle, then had to lean on them in order to walk to the ambulance, according to the report.

"While in the back of the ambulance, he refused to sit down, saying his knee was hurting," troopers said. "Once he sat down, he punched the wall of the ambulance. … Mr. Davis was strapped to the bed in the ambulance and still managed to rise up and attempt to stand again."

Davis was transported to the hospital, where he was given a sedative "to calm him down so a CT scan of his injuries could be done," troopers said. "Mr. Davis' pupils were extremely dilated and he at times spoke incoherently or was non-responsive when asked a question, making it difficult to advise him of his rights per Miranda."

He wasn't able to submit to a breath test because he was sedated and incoherent, so investigators filed a subpoena to complete a blood test, which will reveal the presence or alcohol or drugs in his system, the report says.

Davis joined the city's police force two years ago and is assigned to its uniform patrol division in Second District, which covers a large swath of Baton Rouge south of Florida Boulevard, including areas around LSU's campus. BRPD declined to release additional information about the incident Monday, citing ongoing investigations. 

Davis was booked into jail late Sunday on the following counts: first-offense DWI, red light violation and seatbelt violation. The driver of the other vehicle involved in the crash sustained minor injuries, according to State Police.

Email Lea Skene at lskene@theadvocate.com.