A more thorough explanation:

Definition: The act of a judge accepting evidence in a trial.

Example: During a murder trial, the prosecution presents a knife as evidence. The judge must decide whether to admit the knife as evidence or not.

Explanation: The admission of evidence is an important part of a trial. The judge must decide whether the evidence presented is relevant and reliable. In the example given, the judge must decide whether the knife is relevant to the case and whether it was obtained legally. If the judge decides to admit the knife as evidence, it can be used by both the prosecution and defense during the trial.