a message describing how something is to be done

a collection of rules or prescribed standards on the basis of which decisions are made

decide with authority

a rule adopted by an organization in order to regulate its own affairs and the behavior of its members

an authoritative rule of conduct or procedure

a body of rules followed by an assembly

(law) a rule of law whereby any alleged matter of fact that is submitted for investigation at a judicial trial is established or disproved

the rule that police (when interrogating you after an arrest) are obliged to warn you that anything you say may be used as evidence and to read you your constitutional rights (the right to a lawyer and the right to remain silent until advised by a lawyer)

a collection of rules or prescribed standards on the basis of which decisions are made