The action resulted in 90 people being arrested and a slew of charges laid — 71 criminal charges and 186 under the Controlled Drugs and Substances Act.

About 270 kilograms of dried cannabis as well as hundreds of kilograms of pot-laced food products such as chocolate, brownies and candies were seized during the raid.

"These locations have a broader impact on the surrounding neighbourhoods. There is no quality control whatsoever on these products," Saunders said as dozens of bags of seized goods were laid out before him. "They are marketed in a way to disguise the unknown and unregulated amount of THC (a chemical compound found in marijuana) in the products."

All the dispensaries targeted had been under investigation for weeks, and had been issued letters on May 18 warning them they were engaged in unlawful activities and that action would be taken if they didn't stop.

Only one pot shop shut down as a result of the warning letters, Saunders said.

"These locations cannot tell you where it's coming from nor what its contents is," he said. "You don't even know who you're purchasing off. Out of the arrests that we made, two people were wanted."

Many marijuana activists, however, disagreed with Saunders' reasoning.

"These dispensaries do no harm. The only harm being done in association with these dispensaries is the harm of patients being made to suffer and the harm of peaceful citizens being given criminal records," said Jodie Emery, wife of Marc Emery, Canada's self-proclaimed "Prince of Pot" who served five years in a U.S. prison for selling marijuana seeds from Canada to American customers.

"Doctors in this country are not providing access and that's why dispensaries have become so popular, because the people demand it."

Ontario Premier Kathleen Wynne said the provincial government didn't have anything to do with the police raids, but noted that new federal rules around marijuana would greatly help the situation.

"There’s been a real grey area for a while because the federal government has said they are moving ahead on the legalization of marijuana, but municipal bylaws don't allow what's been happening in Toronto," she said.

"As the federal government brings in the legislation there's going to have to be a very clear delineation between how we deal with medical marijuana and how we deal with recreational marijuana. That hasn't happened yet. The line has gotten blurred and I think that that's why you're seeing what's happening in Toronto."

Justin Trudeau's Liberal government has said a legal marijuana regime will keep pot out of the hands of children and deny criminals the profits of illicit dealing.

By Diana Mehta, The Canadian Press