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Roger ter Haar QC

Call 1974 • QC 1992

"Brilliant at cross-examination." "He's very good in court and clearly understands what judges and arbitrators want to hear."
(Chambers UK 2017)


Roger has been appointed as sole arbitrator or chairman of arbitral tribunals by the LCIA, ICC and DIAC. Experience has included many disputes concerning foreign law including Sharia law.He has acted as counsel and arbitrator in a number of disputes in the Middle East and elsewhere. He is a member of the HKIAC Panel of Arbitrators, the Panel of KCAB International Arbitrators and of the FIDIC President’s List of Adjudicators.

Selected Cases

  • (As arbitrator) A claim for US $50M plus arising out of a project in Sudan.
  • (As Arbitrator) A claim for US $600M arising out of an LNG project in Australia.
  • (As arbitrator) A claim for the equivalent of £200M arising out of a construction project in Dubai.
  • (DAB member) Acted as part of a three man panel in disputes arising out of a dredging contract at an East African port.
  • (Sole Adjudication Board member) Acted as Sole Adjudication Board member in a dispute between Contractor and Employer arising out of the design, construction and outfitting of 3 Police stations in the Caribbean. (FIDIC Yellow book)
  • (As Adjudicator) Acted as Adjudicator in a dispute regarding delay in design and construction of a PFI waste to energy facility.
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  • Deputy High Court Judge (2003)
  • Recorder (2003)
  • Boundary Commissioner (2000)
  • Bencher of Inner Temple (1993)
  • BA Jurisprudence (1973)
  • Magdalen College, Oxford


  • Hong Kong International Arbitration Centre Panel of Arbitrators (2013)
  • The Korean Commercial Arbitration Board Panel of International Arbitrators (2013)
  • Chairman, Inner Temple Estates Committee (1995 – 1999)
  • Former Chairman Lloyds Disciplinary Committee


“Formidable in court, and his ability to absorb an argument that is made, digest it and articulate a response while on his feet is really impressive.”

Chambers UK 2018

“He is very experienced, very charming and a real leader in the field.”

Chambers UK 2018

“He makes complex matters look easy. He’s relaxed but devastating at cross-examination. It is a pleasure to listen to him and to work with him. His memory is virtually photographic, and he’s so lovely.”

Chambers UK 2018

“A very experienced, persuasive and effective advocate, who is popular with clients….an absolutely excellent strategist and one of the best on his feet.”

Legal 500 2017

“Well respected, with a badge of quality…outstanding experience…A popular choice for construction disputes and international arbitration.”

Legal 500 2017

“His ability to quickly grasp the relevant facts and get involved in the strategy of a case is excellent.”

Chambers UK

“He is incredibly clever in a broad way, not just about a particular topic but almost everything.”

Chambers UK

“Judges listen to anything he says’, ‘a well-established construction silk’.”

Chambers UK

“A fearsome operator, whose cross-examination of witnesses can be devastating.”

Chambers UK

“A very thorough and very disciplined counsel who is very good with the detail.” “Simply a class act, who instinctively cuts through the issues to get to the heart of a dispute.”

Chambers UK

“Strong advocate with an understated approach who delivers outstanding results in cross-examination.”

Chambers UK

“An old-fashioned advocate who can pick up any case and run with it well…One of the very best.”

Chambers UK

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