person of interest
noun [ C ] US uk/ˌpɜː.sən əv ˈɪn.trest/ us/ˌpɝː.sən əv ˈɪn.trɪst/ persons of interest
（警方认为的）嫌疑人
a person who the police think might have been involved in a crime, but who has not been arrested
No one has been arrested, but several people have been labeled "persons of interest" and questioned. 没有人被捕，但有几个人被认为是“嫌疑人”并接受了讯问。