Legal writing places heavy reliance on authority. In most legal writing, the writer must back up assertions and statements with citations of authority. This is accomplished by a unique and complicated citation system, unlike that used in any other genre of writing. The standard methods for American legal citation are defined by two competing rule books: the ALWD Citation Manual: A Professional System of Citation and The Bluebook: A Uniform System of Citation. Different methods may be used within the United States and in other nations.[3][4]
Precedent[edit]
Legal writing values precedent, as distinct from authority. Precedent means the way things have been done before. For example, a lawyer who must prepare a contract and who has prepared a similar contract before will often re-use, with limited changes, the old contract for the new occasion. Or a lawyer who has filed a successful motion to dismiss a lawsuit may use the same or a very similar form of motion again in another case, and so on. Many lawyers use and re-use written documents in this way and call these re-usable documents templates or, less commonly, forms.
