Regulations on unmarked law enforcement vehicles vary by state. In Missouri, officers are allowed to pull people over in an ...

Illinois state trooper mourned after being struck, killed by car on I-55 02:49 JOLIET, Ill. (CBS) — An Illinois State Police trooper was hit and killed by a car in Will County near Channahon ...

Two Illinois State Police (ISP) squad cars were struck while handling another crash Tuesday morning on Interstate 55 in Cook County. Around 7:48 a.m., two ISP troopers were inside their squad cars ...

SPRINGFIELD, Ill. -- High-mileage patrol cars are breaking down, keeping state troopers from responding quickly to accidents and costing millions of dollars annually in repairs, according to the ...

Illinois State Police car and IDOT truck hit on Dan Ryan Expressway 00:27. CHICAGO (CBS) --An Illinois State Police trooper was injured when a drunk driver crashed into a squad car and an Illinois ...

BARRINGTON, Ill. (WLS) -- An Illinois State Police trooper is recovering after his squad car was hit while he was helping with a crash Saturday in northwest suburban Barrington. The crash happened ...

CHICAGO (WLS) -- A crowd of about 100 people swarmed and jumped onto an Illinois State Police trooper's squad car Sunday night near Goose Island, police said. A trooper was driving southbound on I ...

JOLIET, Ill. (CBS) — An Illinois State Police trooper was hit and killed by a car in Will County near Channahon Monday night. Police said Trooper Clay Carns, 35, spotted debris in the southbound ...

A state program to replace the fleet every three years has not been funded, and the state budget has not earmarked money for new patrol cars since 2002. Last fiscal year, the Illinois State Police ...