Armed police were called to the farm on Sunday and remained on guard at the scene
Seven people arrested after the discovery of a 20-room cannabis factory on a Norfolk farm have been bailed by police.
Officers said the operation at Gibbet Site Pig Farm at Bradenham near Dereham was one of the largest they had seen.
The seven were arrested on Sunday and Monday on suspicion of cultivating cannabis and they are due to answer bail in January.
Three of them remain in custody on behalf of the immigration authorities.
Norfolk Police also found 200 sacks of raw tobacco and a "crude" shredding machine to produce hand-rolling tobacco which they believed were worth £1m.
They had not yet put a value on the cannabis.
- Published26 November 2013
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