A more thorough explanation:

Definition: An evidence code is a set of rules or laws that determine what evidence can be presented in a trial or hearing.

For example, in California, the Evidence Code outlines the rules for presenting evidence in court. It covers topics such as hearsay, authentication of documents, and the use of expert witnesses.

Another example is the Federal Rules of Evidence, which apply to all federal courts in the United States. These rules govern the admissibility of evidence in federal trials and hearings.

These examples illustrate how an evidence code provides a framework for determining what evidence can be presented in court. By following these rules, judges can ensure that only relevant and reliable evidence is considered in making their decisions.