And so the tax bashing rolls on with the latest Panorama sting, frustrating to watch if truth be told; it felt more witch hunt than investigation. The outcome is that a respected tax expert, Baker Tilly partner David Heaton, has resigned from the government's flagship anti-avoidance panel, arbiters of the much-anticipated GAAR, which was going to solve all tax avoidance in some fabulous swoop on the evaders and avoiders.