Factbox - What happens if British government loses Brexit trigger case?

What happens if the British government loses its appeal against a High Court ruling that said ministers could not start the process of leaving the European Union without parliament's approval? All 11 Supreme Court judges sat on the appeal, the first time they have done so since its formation in 2009, and its president said on Thursday it would reach a decision as quickly as possible. IF GOVERNMENT LOSES One suggestion is that both houses of parliament would debate and vote on a short motion givi