The article surveys the Saint Vincent and the Grenadines v. Guinea M/V Saiga cases which inaugurated jurisprudence of the 21 Member International Tribunal for the Law of the Sea (ITLOS) in Hamburg, Germany, with delivery of two important decisions on prompt release of the vessel and its crew (1997, Case No. 1) and on provisional measures of protection (1998, Case No. 2). The decisions provided precedential instances of application by the Tribunal of Articles 292 and 290 of the 1982 UN Convention on the Law of the Sea respectively, and of the relevant provisions of the ITLOS Rules. The prescription of provisional measures of protection formed the incidental proceedings of the pending M/V Saiga (Merits) case which is to be settled by ITLOS in mid-1999 (Case No. 2) and is to be the subject of a separate article. In view of the ITLOS Statute and the Rules being closely modelled in the Statute and the Rules of the International Court of Justice (ICJ), careful attention is given to comparison of the inaugural practice of ITLOS with the longstanding practice of the ICJ, and preservation of judicial consistency by ITLOS is particularly commended. A history of the M/V Saiga dispute, intertwined with domestic proceedings before Guinean courts, is for the reader's convenience outlined in a Chronological Table annexed to this article.