The Zänti shopping center is located in Volketswil in the canton of Zurich in Switzerland. The venue houses more than 20 retail stores, a medical clinic and a library and is the favorite place for family shopping in the community. Residents from Zurich suburbs also come to shop here attracted by the center’s convenient and charge-free roofed-in parking lot fitting 500 cars.
The parking lot, however, is the place where local teenagers often hang out leaving graffiti and trash behind. A video surveillance system was essentially required to not only identify the authors of drawings and writings on surfaces but to also help investigate crimes like shop windows broken overnight. Monitoring entry and exit points to read license plates was another important task.