Louis Collin, 24, of Wheatley Crescent, Bluntisham, was jailed for four years and eight months at Cambridge Crown Court after admitting conspiracy to rob and possessing cannabis, cocaine, MDMA and a psychoactive substance with intent to supply.The court heard Collin went to Lanegale Nurseries on reconnaissance in October 2016 and the following day at about 6.30am a man in his 70s was assaulted and £43,000 worth of cannabis and two firearms were stolen from him.Later that morning officers were conducting a search of a property in Thistle Green, Swavesey, for an unrelated matter when they discovered 4kg of cannabis, firearms and ammunition. Collin was arrested at the scene and his home address in Bluntisham was later searched. Officers discovered psychoactive substances, MDMA worth up to £460 and cocaine worth £2,250 at the property. Last year Kevin Hands, 41, of Thistle Green, was jailed for five years for robbery and possession of cannabis with intent to supply relating to the same incident. Stanley Chase, 72, of Needingworth Road, was jailed for three years for cultivating cannabis. Detective Constable Mark Joslin said: Drugs cause misery and devastation to the lives of people in our county. We will do all we can to bring people like Collin to justice.