A large cannabis factory was found during a search by the Home Office Immigration Services.
Officers from the Home Office executed a warrant at a home in St Christopher's Gardens in Thornton Heath at 8pm last night (Wednesday).
During the warrant, the cannabis factory was found containing about 200 maturing weed plants.
The Metropolitan Police were called to the scene and four men were arrested at the scene on suspicion of immigration offences and cultivation of cannabis.
Officers located...
