/ʌnˈlɔfəl sərˈveɪləns/ – Phrase
Definition: việc giám sát bất hợp pháp, việc theo dõi trái phép.
A more thorough explanation: Unlawful surveillance refers to the act of secretly observing, recording, or monitoring an individual or group without their consent, in a manner that violates laws or regulations governing privacy and surveillance.
Example: The defendant was charged with unlawful surveillance for secretly recording his neighbor without her consent.