Legal Definitions - alibi witness

An alibi witness is someone who testifies in court that the defendant was somewhere else when a crime was committed. This witness can help prove that the defendant is innocent because they couldn't have committed the crime if they were somewhere else.

For example, if someone is accused of robbing a store at 3pm, but their alibi witness testifies that they were with them at a restaurant at that time, it would be difficult for the defendant to have committed the crime.

However, the defendant must give notice that they plan to use an alibi witness. If they don't, the prosecutor can challenge the defense and prevent the witness from testifying. The prosecutor can also question the credibility of the witness, especially if they have a close relationship with the defendant.

Overall, an alibi witness can be a powerful defense in a criminal trial, but it must be used properly and with proper notice to the prosecution.