In it, the boys are asked by their father to help him keep surveillance on an employee of a technology firm who have hired for a case.

Maycroft said, 'Jago will need to stay in his cottage to keep surveillance on the harbour.

His plan had been to make contact with the book dealer and keep active surveillance on him until Nichols showed up.

We'll keep tight surveillance on the yacht, though, just in case.

Dispatch one squad at a time to keep constant surveillance.

He could be, but my hunch is that he doesn't know who's paying him to keep surveillance on Luke.

But they didn't hire Frezzi to grab 'im, just to keep surveillance and report any sign of returning memory.

Its purpose was to keep records (identification cards, fingerprints, photographs, etc.) and continuous surveillance on the Roma community.

For a time he kept surveillance, but saw no sign of the two partners, nor even a fragment of their boat.

And on a nearby hilltop, the police keep surveillance on a hole in the ground.