In common law countries, it's nearly impossible to write a legal document that's completely unambiguous. Even if it's unambiguous at the time the document is wr

In common law countries, it's nearly impossible to write a legal document that's completely unambiguous. Even if it's unambiguous at the time the document is written, the underlying law could change at any time. Of course that could happen in civil law countries too, but it'd be from a statute being changed.