oral testimony

In law, oral testimony is a solemn declaration made under oath to establish a fact. This testimony can come from witnesses, experts, or even the parties involved in a civil lawsuit. In Anglo-American law, oral testimony is a primary source of proof, alongside documents and real evidence.123

Oral law refers to legal principles passed down through spoken tradition rather than written statutes. While most legal systems favor oral proceedings for interrogating witnesses, some exceptions exist for written statements in specific circumstances. The direct interrogation of witnesses by the deciding court is a key aspect of evidence law, with judges playing a central role in gathering testimony, particularly in inquisitorial systems. In contrast, adversarial systems place the responsibility of presenting evidence, including witness testimony, on the parties involved. Hearsay, which is testimony about what others have said, may be excluded in Anglo-American courts if the original speaker is not available for cross-examination.456