Detectives found more than 100 plants and an "elaborate growing system" after searching a barn. The drugs are believed to have a street value of thousands of pounds.

The discovery was made last Wednesday by officers conducting inquiries near Copthorne Farm, where the body of Martin Hall was found.

Town-based Insp Dave Pegg (pictured) said: "Police searched a barn in South Duffield and found what appears to be quite a large cannabis factory.

"Well over 100 plants were seized, along with an elaborate growing system and other equipment. Inquiries are ongoing at the moment."

The body of Mr Hall was found at 6am on August 4. Post-mortem results revealed the 27-year-old died from a gunshot wound, but Insp Pegg said the incident wasn't being treated as suspicious.

He added a file was being prepared for North Yorkshire coroner Geoff Fell, and an inquest will be held in due course.

* One of the biggest cannabis factories found in Selby district was at Breighton in 2000.

National Crime Squad detectives swooped on an old hangar at the village airfield where 'skunk' plants with a street value of £500,000 were growing.

At the time, they said it was one of the most professionally set-up and organised cannabis production sites ever seized in Britain.