Two nail spas in Chicago were robbed after suspects sprayed a chemical irritant at employees. The suspects allegedly received ...

Researchers have developed a clever new method to detect the chemical that causes the annoying itch. But urushiol isn't all bad. It's also behind... Spray Lights Up The Chemical That Causes Poison ...

Federal prosecutors allege Tanios carried a chemical spray to the riot, and Khater was seen on surveillance tape grabbing the spray—which he described as “bear shit”—from Tanios ...

A rioter who assaulted law enforcement officers with an unknown chemical spray outside the Capitol Building during the Jan. 6 riot was sentenced to 80 months in prison Friday with credit for time ...