What happens in court?

Everyone who gives evidence at a trial will be asked to promise on the Bible that they will tell the truth, the whole truth, and nothing but the truth. If people do not wish to promise in this way, perhaps they are not particularly religious, they can affirm that they will tell the truth. For people of other faiths, there is the opportunity to promise in the manner that their faith allows (for example, people of the Muslim faith can promise on the Koran).