POLICE officers stormed an Exmouth business unit and recovered about £200,000 worth of cannabis plants.
Half-a-dozen officers raided the premises at unit 1A on Pound Lane, previously the Lions Den Gym, after receiving reports about a strong smell coming from the building.
A warrant was immediately sought from Exeter Magistrates' Court and executed, mid-morning on Friday, January 11.
Officers discovered about 300 plants which were at various stages of cultivation in four rooms. About 125 had recently been cropped.
With an average market value of £700 per tree, the street value of the plants, including those recently cropped, amounted to £200,000.
PC Jenny Palmer, investigating, said officers found a "sophisticated and professional" operation.
No arrests have yet been made and anyone with any information about who may be responsible is urged to contact the police. Officers took eight hours to dismantle the set-up and remove the plants for testing.
Police can be contacted on 101, or anonymously via Crimestoppers by calling, 0800 555111, quoting crime reference number, KE13/91.