The proposal— SB 2562— by state Sen. Martin Sandoval (D-Chicago) would allow Illinois police departments to use drones for any "legitimate law enforcement purpose."

"I don't want Chicago to be the next Las Vegas-style outdoor terrorist attack. But I also don't want drones to be surveilling everyone's every move," Sandoval said Thursday. "This legislation clearly is limited to drone usage for providing safety."

Sandoval claimed the proposal would limit police drone use to large public gatherings.

"An individual's private event, on their own property, would not fall under the exception for law enforcement for the use of a drone," Sandoval said. "The bill states that large scale events are events that take place at a sports or entertainment area, a stadium, a convention hall, a special event center, an amusement facility, or an event open to the public on government property."