Police arrest a protester in Toronto's Queen's Park during the G20 summit. (Adrien Veczan/Canadian Press)

By CBC News

The Canadian Civil Liberties Association is calling for a public inquiry into police response during the G20 summit in Toronto over the weekend, calling it "disproportionate," "arbitrary" and "excessive."

"We certainly acknowledge that the police faced a difficult task," Nathalie Des Rosiers, general counsel for the CCLA, told a press conference in Toronto Tuesday.

"Nonetheless, Canadians are entitled to policing that does not undermine their constitutional values."

Des Rosiers highlighted some of the situations that she said warrant an inquiry.

They include police tactics on Sunday evening, when about 500 people were hemmed in by riot police at the intersection of Queen Street West and Spadina Avenue for several hours in the pouring rain.

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