"`undertaking' includes any trade or business but does not include any undertaking or part of an undertaking which is not in the nature of a commercial venture ."
"1. Subject to 2 below, the respondent consents to the Appellants appeal being allowed on the basis that the Industrial Tribunal applied the incorrect test at the preliminary hearing by failing to focus upon the words "whether the undertaking was in the nature of a commercial venture."
"For the purpose of disposing of an appeal the Appeal Tribunal may exercise any powers of the body or officer from whom the appeal was brought or may remit the case to that body or officer."
"In some cases an appeal is allowed and the matter has to go back. In some cases that means a misdirection would mean that the matter would have to go back to be reheard by another Industrial Tribunal, to reach a conclusion on the particular facts. In the present case, however, there is the special feature that the facts were not in dispute before the Industrial Tribunal and therefore it seems to me that this court is in as good a position as was the Industrial Tribunal to reach a decision."
"7. If (which is denied) [and this is now admitted] the Industrial Tribunal erred in law in applying the "commercial venture" test then the case must be remitted to the Industrial Tribunal for reconsideration of the issues (....). The Employment Appeal Tribunal cannot make findings of fact. An appropriate comparison would be with the similarities and the differences between the Second Respondent's security operation immediately before the transfer and how a private security operation run on commercial lines operated. There are no findings of fact to permit that comparison to be made. Merely because activities appear similar before and after a change in contractor does not mean that there was an undertaking or part of an undertaking in the nature of a commercial venture which was transferred or that that is the sole criterion to which the Tribunal must address itself."
"The Tribunal should look at the essence of the undertaking in question, [in this case the in-house security services of AEI Cables] look at its purposes, organisation, users, and policies governing its management and then make a comparison of those factors with a private security service run on commercial lines in order to see whether on a consideration of similarities and differences, the undertaking in question was in the nature of a commercial venture."
"(1) Where it appears to the Appeal Tribunal that any proceedings were unnecessary, improper or vexatious or that there has been unreasonable delay or other unreasonable conduct in bringing or conducting the proceedings the Tribunal may order the party at fault to pay any other party the whole or such part as it thinks fit of the costs or expenses incurred by that other party in connection with the proceedings.