: to watch (someone or something) closely especially in order to prevent or detect a crime The police kept her/the building under surveillance.
How do you use surveillance in a sentence?
The abuse of residents in the home was confirmed by covert video surveillance.
- Judge Keenan concluded that the surveillance had been lawful.
- The suspects are under police surveillance.
- He was arrested after being kept under constant surveillance.
- They were under constant close surveillance day and night.
What to do if you think you are under surveillance?
If you believe you are under surveillance, you can make a complaint to the Investigatory Powers Tribunal (known as the IPT). This a court that will investigate whether you've been subjected to any surveillance that is unlawful – or breaches your human rights. The IPT can consider two types of complaint.
