Many jurisdictions use helicopters for law enforcement, at great expense.  As with most services, personnel typically accounts for one of the largest costs.  In this case, uniformed police officers or deputy sheriffs often accompany the pilot.  This informative article from the Smithsonian magazine discusses the potential future uses of unmanned drones.

But local governments aren’t waiting! As reported in the Star-Telegram, testing of unmanned aircraft is underway in Arlington, Texas as part of an evaluation with the FAA and Justice Department.

The future is coming, and fast.