D. MUSDAPHER, J.S.C (Delivering the Leading judgment): This is an appeal against the decision of the Court of Appeal, Abuja, delivered on the 19/4/2007 whereby the appellant's appeal against the ruling of the INVESTMENT AND SECURITIES TRIBUNAL hereinafter referred to as "the Tribunal", delivered on 4/2/2004, by which the Tribunal struck out the names of all the respondents, herein, from the proceedings before the tribunal on the grounds inter-alia that the respondents were merely agents of a disclosed principal. The matter started this way: By an Originating Application filed by the appellant in a class action, for himself and as representative of those who have registered to purchase shares in public companies under the Privatization Share Purchase Loan (PSPLS) Scheme against the respondents herein who are sued for themselves and as representatives of all the financial intermediaries engaged in the PSPLS Scheme. The claim of the appellant against the respondents herein and the 1st re…