Norfolk City Code
Sec. 14-237. Carrying concealed weapons.
(a) Except as provided in subsection (b) of this section, any per son who carries a weapon concealed on or about his person such as a revolver, pistol, firearm, bowie knife, dirk or knife with a blade attachment, brass or iron knuckles, or any other deadly weapon, commits the offense of carrying concealed weapons.
(b) It shall be an affirmative defense that the defendant was engaged in any lawful business, calling or employment at the time he was carrying any weapon, and the circumstances in which such person was placed at the time were such as to justify a prudent person in carrying the weapon, for the defense of his person, property or family.
(c) Wherever the term "firearm" is used in this section, the term shall mean any instrument used for the propulsion of shot, shell or bullets or other harmful objects by the action of gunpowder exploded within it, or by the action of compressed air within it, or by the power of springs and including what are commonly known as air rifles and B-B guns and shall also include sling shots, wrist rockets and bows and arrows, the latter having a pull in excess of twenty (20) pounds. (Code 1962, § 6-8-2; Ord. No. 4749, § 1, 7-19-04)
State law reference--Similar provisions, R.R.S. 1943, 28-1202.
http://www.ci.norfolk.ne.us/citycode/Search/_vti_script/Index.htm0.idq