/ˈfɛdərəl ˈɪnfərmənt/ – Phrase
Definition: (Mỹ) 1. người đưa đơn tố giác cho chính quyền liên bang;
2. người chỉ điểm làm việc cho chính quyền liên bang.
A more thorough explanation: A federal informant is an individual who provides information to federal law enforcement agencies, such as the FBI, in exchange for some form of consideration, such as immunity from prosecution or financial compensation. The information provided by the informant is used to assist in criminal investigations and prosecutions at the federal level.
Example: The federal informant provided crucial information to law enforcement agencies regarding the drug trafficking operation.