Clifton is the National Compliance Manager at the Management Agency, American Foulbrood Pest Management Plan. He is a veterinarian and senior biosecurity professional, specialising in surveillance and disease response. He worked for the Ministry of Agriculture and Forestry in various roles for a 12-year period from 2000 to 2012. During this time he worked on the 2000 Varroa incursion response, the design of the South Island Varroa surveillance programme, the 2001 outbreak of foot-and-mouth disease in the UK, and the foot and mouth disease hoax on Waiheke Island in 2005. He was responsible for the development of FarmsOnline – a comprehensive register of all New Zealand’s farms to enable MAF to quickly identify and contact New Zealand’s farms in the event of an exotic disease outbreak and led the transformation of MAF’s incursion response systems.