France has deployed more than 13,000 police to ensure protesters get nowhere near U.S. President Donald Trump and other leaders.

Francis Dupuis-Deri, who researches social movements and police profiling, said Thursday he believes police used the photo to intimidate protesters and by doing so, they undermined the public's trust.

Anti-G7 protests are already planned. Quebec City police say they are legal, but some people are worried it won't take long before they get out of hand.