A talk by Professor Paul Leonard BSc (Hons), CRadP, MSRP, C. Biol., FSB., CSci., C MarSci., FI MarEST, FLS Paul has had a long and enjoyable career, primarily with a ‘nuclear flavour’. Having provided evidence for the 1981 Sizewell Public Inquiry and undertaken the month long NRPB Radiological Protection Course, Paul was promoted in 1985 to co-ordinate the aquatic environmental check monitoring programmes at all the major UK nuclear sites. With the Chernobyl nuclear accident in 1986, he was asked to co-ordinate the UK response through appropriate environmental sampling and has published over 40 scientific papers on various radiological topics primarily related to the determination of public exposure from nuclear site operations. His duties have also included being a Nuclear Inspector at the Sellafield nuclear fuel reprocessing site, as well as site responsibilities at other nuclear sites including Greenwich! Paul continues to play an active role in radiological protection and with his practical and first-hand experience as a Nuclear Inspector and of managing the UK’s Chernobyl sampling, the 2011 nuclear accident at Fukushima has meant that Paul has been able to help provide advice nationally and internationally. He is also a Council Member for the Society for Radiological Protection. Paul’s talk this evening provides an introduction to his involvement with ‘nuclear issues’ and how radioactivity may be beneficially used.