Thanks for the range of feedback folks - much appreciated.
I suppose I should have clarified that the GB seem to me to be one of many in resembling the Sanhedrin.
The point also being that the basis on which the GB claims existence of a similar body amongst the apostles is flimsy to say the least. In not equating themselves with the legalistic, judgemental and apostate Sanhedrin however, they are at least dishonest.