For the second day this week, Toronto Police have made a series of raids at storefront pot dispensaries, seizing marijuana and charging employees or owners with drug offences.

On Wednesday afternoon, officers executed search warrants at three ‎locations.

At about 2:20 p.m., they raided the Green Room on Mount Pleasant Road near Davisville Avenue, arresting two people. At around 3 p.m., police descended on Cannabis Culture on Queen Street East near Broadview Avenue, a store operated by prominent pot-legalization advocates Marc and Jod‎ie Emery. Police made four arrests. Another Cannabis Culture location, on Queen Street West, was raided in June‎.

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Around 4 p.m. Wednesday, police raided another dispensary, the Healing Centre, on Dundas Street West near Dufferin Street, arresting three.

Charges were still being laid and evidence collected on Wednesday night, police spokesman Mark Pugash said, but most of those arrested were expected to face charges of possession for the purposes of trafficking, and possession of the proceeds of crime.

Speaking to local TV news outlet, Ms. Emery criticized the raids.

"I'm shocked that the police are continuing to waste tax dollars on a pointless law enforcement campaign that only causes harm to people who are doing no harm to others," she told CP24 in a telephone interview.

‎Wednesday's raids come after three similar ones on Monday against pot dispensaries in the city's east end. In June, four dispensaries were raided on one day, with 23 people facing charges.

These sporadic raids followed a massive sweep by Toronto Police of 43 marijuana dispensaries in May that resulted in drug charges against about 90 people.‎ City bylaw officers also laid charges against some pot dispensaries and their landlords for breaking the city's zoning bylaw, which does not permit pot dispensaries.

‎At a news conference announcing the May raids, pot activists and dispensary shop owners heckled Chief Mark Saunders as he said the pot and edible pot products for sale at illegal storefront dispensaries were not tested and could be unsafe.

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A recent Globe and Mail investigation that subjected marijuana from several Toronto dispensaries to lab tests found that three of nine samples did not meet Health Canada's regulations and contained unacceptable levels of bacteria or mould.

The crackdown followed an alarm raised in May by Mayor John Tory, who also asked city bureaucrats to ‎look into whether the city could draw up a licensing regime, as Vancouver has done, to try to control the spread of pot dispensaries and keep them away from schools.

The pot dispensary movement argues they are providing medical marijuana only to patients who need it, and say the federally regulated legal mail-order medical marijuana system is failing many of those patients. That system has also been deemed unconstitutional after court challenges. But critics say many pot dispensaries sell marijuana to anyone, even those without a demonstrated medical need.

The controversy has erupted as scores of pot dispensaries opened in neighbourhoods across the city over the past year, encouraged by a federal Liberal pledge to legalize recreational mari‎juana next year.