Digby was appointed a
Queen's Counsel in 1993. Digby served on the Executive of the
Victorian Bar Council and as chairman in 2008–2009. He served as a Director of the Australian Academy of Law from 2009 to 2012 and as President of the Commercial Bar Association of Victoria from 2009 to 2012. Digby has been a Senior
Fellow of the
Law school of Melbourne University since 2005. He has lectured in the Masters course in International Construction Law and International Construction Law from 2002 to 2012. Digby was entitled to practise law in the Australian jurisdictions of
Victoria,
New South Wales, the
Northern Territory, the
Australian Capital Territory,
Queensland,
South Australia,
Tasmania and
Western Australia. He was also entitled to practice law in Ireland as a barrister of
King's Inns. and has worked as an international commercial arbitrator. and sits as a judge of the
Commercial Court. ==Personal life==