UPDATED at 12:30 p.m. with additional information about Bahr's arrest.
ST. LOUIS COUNTY — A driver who rear-ended a Missouri Highway Patrol trooper's car Monday night on Interstate 55 had heroin in his car, police said.
The trooper had minor injuries and his patrol car sustained about $15,000 in damage.
Tyler P. Bahr, 30, of Bloomsdale, Missouri, was cited by police for possession of a controlled substance and possession of drug paraphernalia. Bahr had 30 capsules of heroin, according to a Highway Patrol arrest record.
Bahr also was driving on a revoked driver's license, said patrol Cpl. Juston Wheetley.
At about 6:30 p.m. Monday, Bahr was driving a 2013 Chevrolet Equinox north on I-55, south of Interstate 270. His car hit the back of a northbound patrol car.
Bahr was driving "in the middle of highway ... and just came up at a faster speed and rear-ended" the patrol car, Wheetley said.
After he hit the patrol car, they both pulled to the side of the road.
The patrol trooper, Nicholas W. Stevens, 25, suffered minor injuries. Stevens was taken to a hospital for treatment. Bahr refused treatment at the scene, Wheetley said.
The Missouri Highway Patrol said Bahr was held at the Arnold police station, but Arnold police later said he was not booked into their system. The patrol did not immediately respond to a call seeking clarification.
Court records show that Bahr had several previous run-ins with police, including five criminal cases in Missouri this year alone.
Bahr was charged with driving with a revoked license in Ste. Genevieve County in January and then again in March. He was charged with felony drug possession in Festus in January 2018, but a criminal summons in that case was issued only last week. In June, he was arrested by the Highway Patrol on suspicion of DWI, as a persistent offender, and misdemeanor identity theft. Charges were filed last month.
In a 2016 criminal case in Ste. Genevieve County, Bahr pleaded guilty of resisting arrest and DWI. According to online court records, the judge sentenced him to 90 days in jail on each of the two charges, but the judge suspended execution of the sentence and instead put Bahr on private supervised probation for two years.
After authorities alleged that Bahr violated terms of his probation, the judge ordered him to wear an ankle bracelet to monitor his alcohol use and serve 30 days "shock" time in jail. Bahr failed to show up in court for a probation revocation hearing. That case is still winding its way through the court system.
Some of the year's notable crimes
Illinois State Trooper Nick Hopkins shot and killed during East St. Louis standoff
St. Louis City children dying of gun violence
After firefighters rescue four children, mother is charged
He stole $7.5 million from St. Louis Community College, then made millions investing it
Pamela Hupp pleads guilty to the murder of Louis Gumpenberger
Steve Stenger sentenced to 46 months of prison
Cleaning out mother's St. Louis apartment, man finds baby's remains in freezer
Two charged in slayings of five men at north St. Louis County apartment
Police officer Michael Langsdorf shot, killed while on duty
Investigator who worked on Greitens' criminal case indicted as part of perjury investigation
Charges filed in 1993 murder of Angie Housman, 9
8th grade football phenom recently featured in Sports Illustrated is shot to death in Venice
Ladue officer charged with assault in 'reckless' shooting of shoplifting suspect at Schnucks
KMOX radio personality Harry Hamm charged with sex crimes, child porn possession
Wife of Missouri KKK leader admits killing him, claims son didn't help with the murder
Police officer's killer sentenced to life without parole
Amazon driver shot in St. Charles by man accused of being angry over handicapped parking spot
Man accused of wrapping dog in duct tape before throwing it out vehicle window in Jefferson County
Kidnapper kills innocent motorist from North County in bi-state chase before dying in Illinois shootout
Priest found hiding in bushes outside St. Louis County woman's home charged with stalking, police say
Officers charged in shooting at St. Louis bar; police had wanted charges against victim, prosecutor says
St. Louis officers took turns firing revolver with 1 bullet at each other, charges in fatal shooting say