Dumpling in a Hanky

There was a motion proposed last week by the Magistrate's Association in England and Wales, to end the swearing of oaths in court on the bible and other holy books. Although the motion was defeated , there was a sentence that caught my eye: Had the motion been passed, it would probably have needed the approval of parliament to bring the change about. The previous version of the story mentioned it in this way: The practice is so old that it is not clear whether it is simply custom or if Parliament would have to change it. And Oaths sworn on the Bible are old enough for the Magistrates' Association to be unsure whether they are mere custom and practice or whether they were laid down by law. So, whatever the decision in Cardiff, it might need the approval of Parliament to bring the change about.  I found this quite unusual: changes to the law were being proposed, but the people proposing the changes didn't actually know how they would go about changing it! ...