"6.2 The Tribunal were wrong in not giving sufficient weight to the fact that the organisation of the bricklayer gangs and the way that they conducted their business indicated that they were a 'business undertaking'. Insufficient emphasis was placed by the Tribunal on the following factors: …"
"Thus the essence of the intended distinction must be between, on the one hand, workers whose degree of dependence is essentially the same as that of employees and, on the other, contractors who have a sufficiently arms length and independent position to be treated as being able to look after themselves in the relevant respects."