A report by Ontario’s ombudsman on a secret law that sparked confusion about police powers during Toronto’s G20 summit will be released next week.

Andre Marin’s 90-day probe looked at why the province passed the secret law.

In July, Marin said even he was fooled, and his office received dozens of complaints.

His report, to be released next Tuesday, will look at whether it was necessary for the province to pass such regulations and how the government communicated with the public.

He will also examine how police interpreted the law and reacted to those who were demonstrating.

About 1,000 people were arrested on the weekend of the G20 summit after a group of black-clad rioters broke off from a peaceful protest and rampaged through Toronto’s core, smashing windows and setting police cruisers on fire.

Many of those arrested were released without charges, while dozens of others saw their charges later dropped in court.

Toronto’s police services board, the civilian oversight body for the police, will conduct an independent review of police actions during the G20.

The Ontario government also brought in former Ontario chief justice Roy McMurtry to conduct his own review.