OTTAWA - A House of Commons committee will look into questions about costs and police actions at the June G8 and G20 summits.

New Democrat MP Don Davies says the public safety committee will begin hearings this month into the billion-dollar security price tag for the summits and complaints that authorities breached the rights of demonstrators.

Hundreds of people were arrested at the G20 meeting of world leaders in Toronto after extensive damage in the city's downtown.

Some peaceful protesters complained of police violence, threats and mistreatment in custody.

The Conservatives initially balked at hearings, saying other investigations into the summits should be allowed to run their course.