The Illinois State Police will be conducting roadside safety checks in Cook, DuPage, Kane and Will counties during April.

Officers will be stepping up overnight patrols and checks between 6 p.m. and 6 a.m., according to a release from the state police.

Officers working the detail will be watching for drivers who are operating vehicles in an unsafe manner, driving with a suspended or revoked driver’s license and transporting open alcoholic beverages, among other violations, according to the release.

Other violations the roadside checks will be monitoring include:

• driving under the influence.

• safety belt and child restraint use.

• speeding.

• distracted driving.

• all Illinois Vehicle Code and criminal violations.

Alcohol and drug impairment are factors in more than 30% of all fatal motor vehicle crashes in Illinois, and throughout the U.S., almost 10,000 people die each year because of alcohol-impaired driving, according to the release.

This project is funded through the Illinois Department of Transportation, the state police said.