The Illinois Senate has approved a legislative proposal regulating the use of drones by law enforcement agencies in the state.
Lawmakers voted 52-1 Thursday to send the measure to the House.
Drones are highly sophisticated, unmanned aircraft that police and others are eyeing for aerial surveillance.
Democratic Sen. Daniel Biss of Evanston is the sponsor of the bill. Biss says his proposal will help maintain people's reasonable expectation of privacy.
The measure would require authorities to obtain a search warrant before using a drone to collect information.
The bill includes few exceptions, including when the Department of Homeland Security determines such surveillance is needed to prevent a terrorist attack. Other exceptions would be cases of imminent danger or preventing a prisoner escape.
The bill is SB1587.