I found this ex post facto-ing, so I dug up a relevant link: http://news.bbc.co.uk/2/hi/business/8496921.stm http://news.bbc.co.uk/2/hi/business/8496921.stm Th

I found this ex post facto-ing, so I dug up a relevant link: http://news.bbc.co.uk/2/hi/business/8496921.stm http://news.bbc.co.uk/2/hi/business/8496921.stm The law in question is the Finance Act of 2008.