PHOENIX (AP) -- Arizona Gov. Jan Brewer has signed a bill that would allow county attorneys to prosecute people charged with pointing a laser at aircraft.Brewer announced the enactment of House Bill 2164 on Wednesday afternoon.The bill sponsored by Tucson Republican Rep. Ethan Orr would originally have made pointing a laser at aircraft a class 5 felony, but an amendment adopted by the Senate lowers that to a misdemeanor.Pointing a laser at aircraft is already a federal offense. But Orr says federal prosecutors rarely go after offenders and that he wants to give local prosecutors "more teeth."The Federal Aviation Administration reported nearly 4,000 incidents of lasers being pointed at aircraft in 2013, a more than 40 percent increase since 2010.© 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.