JR (Jim) Thomson, BSc(Eng), PhD, CEng, FIET, FIMechE, FNucI is an independent consultant, www.safetyinengineering.com, specializing in high integrity systems and safety management. He has worked in plant operations management, engineering management and safety management, and has previously held executive director posts in two international safety consultancies. He has been chair of two international conferences on high-integrity safety systems, and was awarded the Nuclear Institute's Pinkerton Prize 2013