Except insofar as in any particular case any privilege or immunity is waived by the government whom they represent before the Court, the agents, counsel and advocates of parties before the Court —
(a) enjoy, when engaged on their missions before the Court, and during their journeys to and from the place where the Court is sitting in connection with such missions, immunity from personal arrest or detention and from seizure of their personal baggage and inviolability of all papers and documents;
(b) enjoy immunity from legal process of every kind in respect of words spoken or written and all acts done by them in this capacity;
(c) enjoy, when engaged on their missions before the Court, and during their journeys to and from the place where the Court is sitting in connection with such missions, the like exemption or relief from taxes as is accorded to an envoy of a foreign sovereign Power accredited to the Republic of Singapore, except that the relief allowed does not include relief from excise duties except in respect of goods imported as part of their personal baggage; and
(d) are not, where the incidence of any form of taxation depends on residence, deemed to be resident in Singapore during any period when they are present in Singapore while exercising their functions or during their journeys to and from the place of meeting.