HOW IT WORKS: H.A.L.O. Cameras
Channel: Denver Police
Date: 2016-04-03

You've probably noticed those big, white cameras high in the sky around Denver. Those are H.A.L.O. (High Activity Location Observation) cameras. How do they work and why are they there? Check this video out, then click this link for a list of H.A.L.O. camera locations around Denver: http://bit.ly/22Vo61V