Police raided the three-storey industrial unit in Cirrus Court, of St Peters Road, Huntingdon, on February 1 and found Matthew Prill, of Kingsbrige, Devon, and Mark Larios, of Grays, Essex, living inside. Officers discovered around 730 plants, with a street value of between £650,000 and £950,000. Investigating Larioss address the following day, officers were led to Vincent Gillett, and arrested him as he acted nervously and suspiciously when they asked about Prill. On April 4, Gillett, 34, along with Prill, 34, and Larios, 43, admitted production of cannabis. After further examination of the factory, forensic investigators found David Gormans fingerprints on plastic sheets and invoices with the 54-year-olds name on it. Gorman was convicted of production of cannabis on October 15 following a four-day trial at Peterborough Crown Court. Huntingdon Crown Court today (Wednesday) heard Gorman, of Nazeing, Essex, was involved in setting up the factory, which he rented off a former business associate, with Larios and Gillett in June 2011. Prill, who told probation officers he was going to be paid £5,000 for three-and-a-half months work, was asked to help about two months before the raid. Judge Patrick Moloney sentenced Prill to 20 months, Larios to 15 months and Gillett, who saw active duty in the army, to 40 months. Gorman was jailed for seven years.