John Brown

John Brown, MA FRIN FRGS CSci CMarSci FIMarEST

  • Head, Law of the Sea Group, United Kingdom Hydrographic Office (UKHO)
United Kingdom Hydrographic Office
Admiralty Way
United Kingdom
Tel: +44(0) 1823 723407
Mobile: +44(0)7717 347982

John began his sea-going career in 1974 and trained as a navigating officer. He joined the UK Hydrographic Office in 1993 after working as a surveyor in the offshore industry for several years.

He advises UK Government departments on Law of the Sea matters and provides technical input to UK maritime zone legislation. John has worked with several foreign governments on maritime delimitation, baselines and maritime zones and has taken part in a number of boundary negotiations; both bilateral and third party adjudication – including acting on behalf of Nicaragua as Scientific and Technical Advisor at the International Court of Justice. He has also been a member of the UK delegation during boundary negotiations.

He is responsible for providing all technical Law of the Sea training to senior Royal Navy professional courses and has attended and presented papers on technical aspects of maritime boundary delimitation at international conferences, training courses and workshops on international boundaries (at the London International Boundary Conference; International Boundaries Research Unit, Durham; Centre for International Law, NUS Singapore; King’s College London – where he is a Visiting Research Fellow – and Lund University, Sweden). He has also run detailed training courses in international boundary delimitation for foreign governments.

He is a member of the Greenwich Forum, a Fellow of the Royal Institute of Navigation, a Fellow of the Royal geographic Society, a Fellow of the Institute of Marine Engineering, Science and Technology and is currently Vice Chairman of the joint IHO-IAG Advisory Board on Law of the Sea. In April 2015 he was appointed Head of the Law of the Sea Group at the UKHO.

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