Kelvin Hughes has over 40 years' experience in management of major projects. He has been a leading authority on NEC contracts since 1995, has run over 1600 NEC training courses, and written 4 books on the practical application of NEC contracts. Patrick Waterhouse is a chartered civil engineer. He has worked with NEC contracts since the 1990s and is one of the leading experts in the field. Patrick is on the panels of several adjudicator nominating bodies and regularly adjudicates NEC disputes.