Laddie was educated at Aldenham School and St Catharine's College, Cambridge. He studied medicine but changed to law.[5] He became a barrister in 1969.[5] He is credited with having developed the idea of applying for an Anton Piller order[7] while still a junior.[8] After 25 years at the bar, he was appointed a High Court judge in April 1995,[9] and was assigned to the Chancery Division, as one of the Patents Court judges.
He resigned from his post as a judge in 2005, "because he found it boring" and felt isolated on the bench.[9] He became a consultant for Willoughby & Partners, a boutique law firm, UK legal arm of Rouse & Co International,[4][10] a move which was criticised by some.[11] He was thought to be the first High Court judge to resign voluntarily in 35 years,[3] and the first subsequently to join a firm of solicitors.[4] No one since Sir Henry Fisher, in 1970, had resigned from the bench.[2]
He was appointed to a Chair in Intellectual Property Law at University College London, with effect from 1 September 2006.[12] He founded there the Institute of Brand and Innovation Law.[6] The Sir Hugh Laddie chair in Intellectual Property has subsequently been established at UCL.
^See, e.g., UCL News ("he is credited with having invented the 'Anton Piller' (search and seizure) order and was described by Lord Denning as the 'enterprising' Mr Laddie."); RouseArchived 1 March 2009 at the Wayback Machine ("He is widely credited as being the founding father of the Anton Piller Order."); Howard Knopf ("It was he as a young barrister at the age of 29 who developed the remedy known as the 'Anton Piller order' and won the landmark appellate ruling in a judgment written by Lord Denning confirming its historic place in legal history")