A New York appeals court has reversed the conviction of a 14-year-old boy arrested after a street search turned up a weapon in his backpack.

The court ruled the officers were relying on a hunch that something illegal was inside the teen's bag during a stop in 2010 in the Bronx. The court ruled the officers needed something more concrete to justify searching the backpack.

The teen was stopped by officers after he was seen glancing around and putting something white from near his waist band into his backpack. They stopped the teen, asked him where he was going, searched the backpack and found a gun, ammunition, and $963.

The teen was sentenced to probation, but two of the judges on the three-member panel reversed the sentence. One judge dissented.

Get the latest from NBC 4 New York anytime, anywhere. Follow us on Twitter, Facebook and Google+. Get our apps here and sign up for email newsletters here. Get breaking news delivered right to your phone -- just text NYBREAKING to 639710. For more info, text HELP. To end, text STOP. Message and data rates may apply.