Chicago police regulations allow officers to arrest people on the basis of an investigative alert where there is probable cause to believe a suspect has committed a crime. But a recent Illinois court has now ruled this practice unconstitutional.

In People v. Bass, the defendant allegedly molested a minor. Chicago police issued an investigative alert but did not apply for an arrest warrant. Three weeks later, police pulled defendant over, ran a name check then arrested him based on the alert.

The court held the arrest illegal because an investigative alert allows a police supervisor—rather than a judge–to determine probable cause. The court reasoned that the Illinois constitution goes “a step beyond” the U.S. Constitution in requiring a warrant in these circumstances before a valid arrest can be made.

Although the arrest was illegal, the court sent the case back for a new trial because there was sufficient other evidence to convict defendant.

The court noted that only the Chicago Police Department appears to use investigative alerts (also called “stop orders”). By striking the practice, Chicago Police would be put on an equal footing with other police departments, the court said.

If you have been charged with a crime, contact an experienced criminal law attorney immediately. An attorney can review your case for its best possible defense. Did the police follow proper procedure to arrest you? Even if the police acted lawfully and the evidence against you is overwhelming, an attorney who is respected in the courthouse may be able to negotiate a more favorable plea agreement than you could on your own.

If you have questions about this or another related Illinois criminal or traffic matter, please contact Matt Keenan at 847-568-0160 or email matt@mattkeenanlaw.com.

(Besides Skokie, Matt Keenan also serves the communities of Arlington Heights, Chicago, Deerfield, Des Plaines, Evanston, Glenview, Morton Grove, Mount Prospect, Niles, Northbrook, Park Ridge, Rolling Meadows, Wilmette and Winnetka.)

Matt Keenan

A criminal and school law attorney with over 24 years of experience, I have successfully represented clients all over the Chicago area. My practice includes DUI, felony, criminal, misdemeanor, homicide, internet crime, retail theft, traffic offenses, cyberstalking, drug crimes, weapons violations, domestic battery…

A criminal and school law attorney with over 24 years of experience, I have successfully represented clients all over the Chicago area. My practice includes DUI, felony, criminal, misdemeanor, homicide, internet crime, retail theft, traffic offenses, cyberstalking, drug crimes, weapons violations, domestic battery and juvenile crime. I also represent families involving school cases. My clients come from all over the Chicago area including Skokie, Wilmette, Niles, Northbrook, Glenview, Evanston, Winnetka, Highland park, Northfield, Park Ridge, Des Plaines and Mount Prospect. I am a member of the ACLU, Illinois State Bar Association.