David is a sport integrity consultant in Wellington. He is the Chair of the Athletics Integrity Board, having been re-appointed to that position by the World Athletics Council in September 2019, the Chair of World Squash Ethics Commission, Deputy Chair of the International Tennis Federation Ethics Commission, and Chair of the International Cricket Council Anti-Corruption Oversight Group. David was a member of the Australian Government’s Panel reporting on Sport Integrity in 2018 and holds the position of Adjunct Professor at AUT. Nationally he is Chair of the Board for Cricket Wellington and was the Reviewer responsible for the report on Gymnastics New Zealand.

David was Director General (more corporately named the CEO) of the World Anti-Doping Agency (WADA), from August 2003 until July 2016, and was instrumental in the shaping of WADA into a highly respected and unified global organization responsible for regulating and monitoring world sport and world governments.

Prior to his time at WADA David practised as a barrister specialising in sport law, and represented many prominent NZ players, referees and coaches. He was Chair of Tennis NZ, Fair Play Citing Commissioner for NZ Rugby and SANZAR, and on the Boards of the Hillary Commission and NZ Sports Foundation. David received a CNZM for services to sport in 2017.