/ˌriːɪnˌvɛstɪˈɡeɪʃən/ – Noun
Definition: việc tái điều tra, việc điều tra lại.
A more thorough explanation: Reinvestigation refers to the act of conducting a new or further investigation into a matter that has already been investigated previously. This may involve gathering additional evidence, interviewing new witnesses, or reexamining existing information in order to reassess the facts and circumstances of a particular case.
Example: The police department conducted a reinvestigation into the cold case, hoping to uncover new evidence.