sky watchtower
n.— «“It allows you to see over a large area,” said Chief Carlos Gomez, a Police Department executive officer for northern Queens, who estimated that the camera was capturing images 300 yards away. He had joined Officer Solano in one of the five sky watchtowers that are being used by the department to provide better surveillance capability, and a highly visible police presence at public events, busy intersections or high-crime sites.» —“At Shea Stadium, Police Choose Perch 20 Feet Above Crowd” by Thomas J. Lueck New York Times Apr. 10, 2007. (source: Double-Tongued Dictionary)
Further reading
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