Seven arrests have been made and a haul of drugs seized during a series of swoops by Bradford District Drugs Team.
The drugs team carried out 11 operations last week, in Barkerend, Toller Lane, Manningham, Girlington and West Bowling.
Four people were arrested on suspicion of class A drug trafficking and further arrests made for possessing class A drugs, the production of cannabis plants and theft from person.
More than 1,000 skunk cannabis plants and significant quantities of suspected heroin and crack cocaine have been recovered. Three large-scale skunk cannabis farms have been uncovered and the total street value of the drugs recovered is estimated to be more than £170,000.
In the same week, four men who answered their bail have been charged with offences connected to the supply of class A drugs and will appear before Bradford magistrates.
Detective Inspector Neil Benstead, head of the district drugs team, said: "I would urge local landlords to be vigilant when renting out their properties. The cannabis growers will wreck the properties during the cultivation process and leave landlords with thousands of pounds of damage.
"We urge members of local communities to call Crimestoppers, anonymously, on 0800 555111."
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