Jamie Busk, 38, was charged with unlawful storage of a weapon after he was stopped around 2 p.m. Monday at the building's entrance near Randolph and Dearborn, according to a release from the Cook County sheriff's police. He was released on his own recognizance.

Busk was stopped by Deputy David Nowacki after going through an X-ray machine because the deputy noticed several metal objects that appeared to be inside Busk's belt, the release said.

When the deputy inspected the belt, he found a zippered compartment that contained a pocket knife with a 2-inch blade, a handcuff key and a multi-tool. In addition, the belt's buckle could have been used as a weapon, police said.