/ˈlɔːfəl səˈveɪləns/ – Phrase
Definition: việc giám sát hợp pháp, việc theo dõi hợp pháp.
A more thorough explanation: Lawful surveillance refers to the monitoring or observation of individuals or activities by law enforcement or government agencies in accordance with legal procedures and regulations. This type of surveillance is conducted within the boundaries of the law, typically with the authorization of a court or other legal authority, and is carried out for purposes such as maintaining public safety, preventing crime, or gathering evidence for legal proceedings.
Example: The government obtained a warrant to conduct lawful surveillance on the suspect’s phone calls.