GARDAÍ HAVE ARRESTED two people after a “substantial quantity” of drugs, worth an estimated €850,000 was seized at a house in Navan, Co Meath last night. During the search at a house at Tailteann Drive, a significant quantity of drugs comprising of cannabis in herbal form, MDMA in ecstasy tablet form, cocaine, diamorphine, a large amount of suspected mixing agent and other drugs related paraphernalia was found.