WATERTOWN, Wis. (WFRV) — Authorities in southeastern Wisconsin recovered several grams of cocaine with the help of a K9 officer on Tuesday evening. According to a release, the Watertown Police Department conducted a traffic stop in the southern area of Watertown. During the stop, K9 Chance sniffed the vehicle for narcotics. Street cameras help Wisconsin police track and stop stolen vehicle K9 Chance alerted officers to the presence of narcotics in the vehicle. After a search, officers located over half an ounce of cocaine, multiple items of drug paraphernalia, and other materials linked to narcotics sales. All three occupants of the vehicle were arrested.