Waterloo Regional Police say they seized a large quantity of suspected fentanyl during a routine traffic stop on Wednesday.
Police say they pulled a vehicle over on Brierdale Road in Cambridge before they arrested a 29-year-old Cambridge female on outstanding warrants.
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Police say they then found 32 grams of suspected fentanyl worth around $10,000 in the vehicle.
They also arrested a 24-year-old man from Toronto.
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Police say the pair are facing several charges including possession for the purpose of trafficking fentanyl.