The targeted areas include Hachiko Square, Center-gai, Dogenzaka and Miyashita Park. Violators will be given warnings by ward officials. Shibuya Mayor Ken Hasebe announced the prohibition on Oct. 20. "I hope we thoroughly implement measures to not see the downside of the event and instead promote a Halloween with proper behavior," Hasabe said. He said the ward has urged businesses around the station not to sell alcoholic drinks. Security personnel will be dispatched in the area as well, he said. Officials expect a large crowd around Shibuya Station on the evenings of Oct. 29 and 31. During that time, the ward will dispatch about 100 private security personnel and ask 36 shops, including convenience stores, to voluntarily refrain from selling alcohol.