/tə ˈkwɒlɪˌfaɪ ə ˈwɪtnəs baɪ ði ˌɒblɪˈgeɪʃən ʌv ən əʊθ/ – Phrase
Definition: chấp nhận tư cách nhân chứng với điều kiện phải tuyên thệ.
A more thorough explanation: To qualify a witness by the obligation of an oath means to administer an oath to a witness in a legal proceeding, requiring them to swear or affirm that they will tell the truth in their testimony. This process is intended to ensure that the witness understands the importance of honesty and is legally bound to provide truthful information.
Example: The court will qualify the witness by administering the oath before they provide their testimony.