Thomas McCulloch, 51, was jailed for five years at the High Court in Glasgow on 22 June 2009 for producing cannabis at a warehouse on the Garrion Business Park in Wishaw.[1] He was found guilty of acting with another in being concerned in the production of cannabis between 1 December 2005 and 17 September 2006.[1]

Police found 2,000 plants that could have produced £600,000 of cannabis per crop, alongside equipment set up to grow a new crop almost six times a year, a potential £3.6 million of herbal cannabis.[1] Officers had uncovered the factory after 15-year-old Dean Cannon fell 30 ft through the warehouse roof in September 2006 and died; the 2006 account put that haul’s value at up to £500,000.[1][2] A two-storey timber building had been constructed inside the factory to hide its heat from police helicopter infrared cameras.[1]

McCulloch claimed he had rented the unit as a base for a mobile car-valeting business and sublet it to two men in March 2006, denying he had ever seen the plants or equipment.[1]