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

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 ...

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 ...

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 ...

An Illinois State Police trooper was injured after a motorist struck their marked squad car from behind on southbound I-94 early Saturday morning, department officials said. State police say that a… ...

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 ...