To make heightened efforts to catch a suspect.
To drag a net across the bottom of a body of water.
Heightened efforts by law-enforcement personnel to capture suspects.
A net dragged across the bottom of a body of water.
To sacrifice (a pawn or minor piece) to gain an advantage.
Any ploy or stratagem.
An opening in chess in which a minor piece or a pawn is sacrificed to gain an advantage.
A remark intended to open a conversation.