Firearms and Ammunition - As introduced, creates an offense to store or keep a firearm in any place unless the firearm is secured in a locked container, unloaded, and separate from ammunition so as to render the firearm inoperable by any person other than the owner or another lawfully authorized user except when the firearm is carried by or under the control of the owner or other lawfully authorized user; exempts a juvenile who is knowingly in a mental health crisis to use a defense to prosecution for illegally possessing a handgun. - Amends TCA Title 38 and Title 39.