/ˈkɒmənwɛlθɪz ˈwɪtnɪs/ – Phrase
Definition: nhân chứng của bên công tố (tại tòa án của một số bang).
A more thorough explanation: A Commonwealth’s witness refers to a witness who testifies on behalf of the prosecution in a criminal case. In some jurisdictions, such as those in the United States, the term “Commonwealth” is used to refer to the state or government prosecuting the case. Therefore, a Commonwealth’s witness is a witness called by the prosecution to provide evidence against the defendant.
Example: The Commonwealth’s witness testified that they saw the defendant at the scene of the crime.