He was sentenced at Exeter Crown Court earlier today.
Williams was using his flower business to grow cannabis
the police had siezed £300,000 worth of the drug from his business Williams Flowers in Fairly Close. 
The flower business was raided in 2003 with the police finding hundreds of the plants, and despite awaiting trial for this he set up another cannabis growing operation. 
Recorder Christopher parker commented 'it was plainly a high level commercial enterprise set up by you to make some money fast'