Members of the ten-strong group were jailed for 37 years in total after the criminal enterprise was discovered in a sting operation.
A total of 2,500 plants with a street value of £1,000,000 were recovered after officers raided 18 properties in north west UK. Some of the cannabis farmers had been working to repay debts to people who had smuggled them into the UK, Preston Crown Court heard.
Vietnamese drugs gang grew cannabis on ‘industrial scale’ in £1,000,000 plot