BENSENVILLE — Zoe is a normal dog. The 3-year-old yellow Labrador keeps busy with walks through town, playing fetch and visiting her neighbors.

The 65-pound pup still appears like your everyday pet until Jack Barba, an officer with the Bensenville Police Department, takes out a black pouch that belts around the waist. When Zoe sees the pouch, it's time to go to work.

Zoe is an arson dog that uses her keen scent of smell to locate accelerants that might have been used to intentionally start a fire, working alongside investigators at crime scenes.