What are the rules of evidence in criminal cases?

In California, the rules of evidence in criminal cases are governed by the California Evidence Code. Generally speaking, the Rules of Evidence are designed to ensure that all evidence presented during a criminal trial is reliable and relevant to the case. The rules dictate which types of evidence are admissible in court and how it can be used. The rules of evidence mandate that any evidence presented must be both relevant and reliable. All evidence must be connected to the case at hand and must be verifiable. This includes physical evidence, such as fingerprints, DNA, and testimony. Additionally, any evidence used must be untarnished and obtained in an ethical manner. The rules of evidence also dictate that certain types of evidence may not be admitted, such as hearsay, or statements made by someone other than the witness. Other types of evidence that are traditionally excluded include any kind of privileged communication, such as those between doctor and patient or attorney and client, and evidence obtained in violation of a person’s Constitutional rights. The rules of evidence are designed to make sure that justice is served in criminal cases. By ensuring that all evidence presented is relevant and reliable, the rules protect the right of the accused to a fair and impartial trial.

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