I am well aware that the TUC has pledged to oppose the ID card scheme. However, the operative words in the statement are "pledged to oppose". What you have to remember is that The National Executive Committee or NEC is the chief administrative body of the Labour Party.
Good post and you make the very important point about the possibility of ten years imprisonment for strike action that interferes with the database. This, I am given to believe, was key in getting the TUC to vote against ID Cards. The motion must have been effective in get the Government to change it tactics and limit airport ID Cards to just two airports. So I would argue that TUC opposition hit home and we need to build on that.