Officers found diamorphine and cocaine with a street value of £90,000 during house searches in Cherry Avenue and Gean Court, Cumbernauld, North Lanarkshire, at about 7.20pm on Wednesday.
Two men, both aged 26, and a woman, 24, were arrested.
Later the same day, a kilo of heroin worth about £70,000 was recovered near Applecross Street, Possilpark, Glasgow.
No arrests have yet been made in connection with the find.




