You can use certain documents to help understand what a law means. These documents are about what happened in Parliament. You can look at these documents in court, but only to understand the law, not to question what Parliament did. You can use these documents as evidence or talk about them in court. This helps the court understand what the law is trying to say. It is based on sections like Sections 18 and 19, and the Bill of Rights 1688. The court can look at these documents to make sense of the law. This is allowed, as long as it is only to understand the law. It does not affect what Parliament did.