Firearms and Ammunition - As introduced, authorizes persons with an enhanced handgun carry permit to carry a handgun on school property unless the person knows that the respective school provides armed security on the school property; removes certain exemptions of a law enforcement officer's authority to possess a firearm on school property; authorizes certain community corrections officers to possess a handgun on school property. - Amends TCA Title 39, Chapter 17, Part 13 and Title 49.