Two men were warned they face 'significant jail terms' after they were convicted of involvement in a Norfolk cannabis factory which had a potential annual yield of £120,000 to £214,000.

Two men were warned they face 'significant jail terms' after they were convicted of involvement in a Norfolk cannabis factory which had a potential annual yield of £120,000 to £214,000.

Ian Brown, 54, and John Styles, 46, ran the operation from premises at High House Barns, Gunn Street, Foulsham, where they both also lived, Norwich Crown Court heard.

Following a trial, Brown and Styles were both convicted by a Norwich Crown Court jury of production of cannabis and both were also convicted of illegally abstracting thousands of pounds worth of electricity.

Brown and Styles had both denied the offences but the jury took just over two-and-a-half hours to convict them of all charges.

Styles was remanded in custody, but Brown was given conditional bail.

However, Judge Katharine Moore warned them that they both faced significant sentences.

She said Brown, a businessman with assets, would also face significant confiscation proceedings.

The court heard that Styles, who had been convicted of a similar matter of growing cannabis in Essex, was in breach of a suspended sentence.

William Carter, prosecuting, said that police raided the Foulsham premises in December 2014, and found hundreds of cannabis plants with a potential annual yield of £120,000 to £214,000.

He said there were three growing areas.

In one section there were 21 plants and 160 small cuttings and in a second section there were 125 mature plants and in the third section there were pots, which showed that a previous crop had been cultivated.

He said there were also six kilos of dried cannabis.

He estimated that £38,000 worth of electricity had been illegally abstracted to provide heating and lighting for the cannabis growing operation.

He said that both men had played a 'leading role' in the cannabis factory, which was on a commercial scale with substantial financial gain.

'This was most certainly an operation producing a significant quantity of cannabis for commercial use.'

The case was adjourned for reports and Brown and Styles are due to return for sentence on September 9.

Andrew Oliver, for Brown, said he was a man of previous good character and needed time before sentence to sort out personal and business matters.

Ian James, for Styles, also asked for a pre-sentence report for Styles.