A 67-year-old man has been jailed for 18 months after police found £30,000 worth of cannabis growing in his house.

Brian Roissetter's home in Brea, Camborne was raided by police on February 9.

They found cannabis plants being grown in four areas, and that the electricity supply had been diverted from the cottage to run the sophisticated production units, prosecutor Philip Lee told Truro Crown Court on Friday.

Officers found 526 plants in various stages of growth, and the potential yield of skunk cannabis from 96 well grown, healthy plants was estimated to be worth £30,000 on the streets. It was estimated about £2,000 worth of electricity had been diverted.

"Even on the basis of selling to people who want to use it as a medicine this was a commercial operation," declared Judge Christopher Elwen.

Roissetter, who had pleaded guilty earlier to producing the drug and abstracting electricity, was jailed for 18 months.