In broad terms, substantive law defines rights and duties of persons; procedural defines and deals with procedures for those rights and duties. Substantive law a wide variety of matters-for example, is required to form a contract, the difference is between larceny and , when one is entitled to compensation an injury, and so on. The of procedure and jurisdiction determine the or administrative agency that may handle claim or dispute; the form of trial, hearing, or appeal; the time involved; and so on. Related rules cover the kinds of evidence that be presented. Such rules are more in trial courts than in administrative . The fine points of procedural law considerable, but they are generally thought be indispensable to whatever efficiency and law may have.