Ipp was formerly a judge of the Court of Appeal of the Supreme Court of New South Wales, the highest court in the State of New South Wales, Australia, which forms part of the Australian court hierarchy.
In 1964, Ipp became a partner at Hayman Godfrey & Sanderson Attorneys in Johannesburg. He was admitted to the South African bar in 1973.
Ipp served as Treasurer of the Law Society of Western Australia in 1988. He was a Fellow at the University of Western Australia in 1999-2000, and was awarded an Inns of Court Fellowship at the University of London's Institute of Advanced Legal Studies in 1996-97.
From 1989-2002, Ipp served as a judge of the Supreme Court of Western Australia. From 1993 to 2001, Ipp was also the Judge in Charge of the Civil List. From 2001-2002 he was Acting Judge of Appeal of the NSW Court of Appeal before being appointed a Judge of Appeal in 2002.
Ipp also served as a judge on the Supreme Court of Fiji.
Ipp is currently a member of the Court of Arbitration for Sport and has been since 2000.
Ipp has been the author of many publications of academic and professional journals and has contributed to various books.
Tort law reform
Ipp was the Chairman of the Panel of Eminent Persons, which former Australian Prime Minister John Howard established in 2002 to reform tort laws. The Panel produced its final report known as the Ipp Report on 30 September 2002. Many of the recommendations in the report were taken up by state Parliaments in enacting new personal injury legislation.
In 2007, Ipp criticised the reforms which were introduced as a result of his recommendations, suggesting many of the reforms had gone too far.
Independent Commission Against Corruption
In November 2009, Ipp was appointed as the Commissioner of the NSW Independent Commission Against Corruption (ICAC), replacing Jerrold Cripps QC whose fixed term had expired. Ipp's fixed term as Commissioner was due to expire in November 2014; however in October 2013 he announced his retirement with effect from late January 2014, citing ill health.
Ipp has since been involved in a number of significant ICAC investigations including the investigation of corruption allegations against several members of parliament and former cabinet ministers.
Ironically Ipp himself is now at the centre of misconduct and maladministration allegations, whilst he was ICAC commissioner. These Allegations have been made most recently by NSW MLC Dr Peter Phelps
Ipps reign was also marked by an overstep in legislative authority by the ICAC. Ipp went on to lobby the then NSW Premier Mike Baird for retrospective legislative changes in order to quarantine his overreach effectively disregarding long established Rule of Law principles.
- Commissioner prowls, then pounces without a thought for mercy by Harriet Alexander & Linton Besser (Sydney Morning Herald, 2 November 2012)
- Who's Who in Australia
- Ipp, "Reforms to the Adversarial Process in Civil Litigation"(1995) 69 ALJ 705.
- Farewell Ceremony for The Honourable Justice Ipp AO upon the occasion of his retirement as a Judge of the Supreme Court of New South Wales, 13 November 2009, http://www.supremecourt.lawlink.nsw.gov.au/agdbasev7wr/supremecourt/documents/pdf/ipp_speeches.pdf
- Court of Arbitration for Sport, "Arbitrators (General List)", http://www.tas-cas.org/arbitrators-genlist
- Panel of Eminent Persons, Review of the Law of Negligence Website
- The Ipp Report, Australian Government Treasury website
- Tort changes went too far: judge by Chris Merritt (The Australian, 5 April 2007)
- "Justice Ipp appointed ICAC Commissioner" (Press release). Independent Commission Against Corruption. 13 November 2009.
- Nicholls, Sean; Whitbourn, Michaela (24 October 2013). "ICAC commissioner David Ipp announces retirement". The Sydney Morning Herald. Retrieved 23 January 2013.