Chicago area first responders parade their vehicles

Photos by Erika Wurst / for Chronicle Media

Law enforcement agencies from throughout the Chicago area were represented at the 21st annual Chicagoland Emergency Vehicle Show on Aug. 4 in Oswego.  The event, featuring a short parade, was held at Main Street and U.S. Route 34.   Everything from police squad cars to antique fire engines to current military-style vehicles were featured.  (Photos by Erika Wurst / for Chronicle Media)