+A **legal instrument** is a formal, written [document](/wiki/document) that gives effect to a legal act. It establishes rights, duties, or obligations, often creating or modifying a [contract](/wiki/contract) or other legal relationship under [law](/wiki/law).
+## See also
+- [Agreement](/wiki/agreement)
+- [Statute](/wiki/statute)
+- [Deed](/wiki/deed)
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