In 2010, the G-20 summit was held in Toronto, Ontario at the Metro Toronto Convention Centre, from June 26-27. It was the fourth meeting of the G-20 heads of government. The protests began a week ahead of the summit. At first, they were peaceful demonstrations for causes such as world hunger, anti-capitalism, and poverty, but protests soon turned violent. A group of protesters used black bloc tactics, vandalizing many downtown Toronto businesses. Over twenty-thousand police, military, and security personnel were involved in controlling the situation. Mass arrests were made, with the total number of arrests being over one thousand. Following the summit, Toronto Police were heavily criticized for brutality and alleged failure to follow policy and procedural law during the arrests.