Elaine had driven up to check out the surveillance operation.

The act also empowered the service with rights to perform surveillance operations.

On a surveillance operation we are looking at, I wouldn't like to see an officer who is armed, more than six hours in that position.

Video cameras make a play look like a surveillance operation.

Tell the jury what it was like conducting a surveillance operation on that estate.

Eve made an effort to put the surveillance operation out of her mind.

They were apprehended by undercover officers who had been following the men as part of a surveillance operation.

"This is probably one of the most sophisticated surveillance operations around."

"I thought he might want me to consult on some sort of surveillance operation."

Turner and Troy weren't on the island for a simple surveillance operation.