(a) As used in this Code section, the term ‘‘penal institution’’ means any place of confinement for persons accused of or convicted of violating a law of this state or an ordinance of a municipality or political subdivision of this state. (b) No person legally confined to a penal institution shall commit an unlawful act of violence or any other act in a violent or tumultuous manner in a penal institution. (c) Any person who violates this Code section shall be guilty of a felony and, upon conviction thereof, shall be punished by imprisonment of not less than one year nor more than 20 years. (Code 1981, 707 16-10-56 § 16-10-56, enacted by Ga. L. 1995, p. 137, § 1.1; Ga. L. 2017, p. 500, § 3-5/SB 160.) The 2017 amendment, effective July 1, 2017, added subsection (a); redesignated former subsection (a) as present subsection (b); substituted the present provisions of subsection (b) for the former provisions, which read: ‘‘Any person legally confined to any penal institution of this state or of any political subdivision of this state who commits an unlawful act of violence or any other act in a violent or tumultuous manner commits the offense of riot in a penal institution.’’; redesignated former subsection (b) as present subsection (c), and, in subsection (c), substituted ‘‘violates this Code section shall be guilty’’ for ‘‘violates subsection (a) of this Code section is guilty’’, and inserted ‘‘year’’ near the end. Editor’s notes. — Ga. L. 2017, p. 500, § 1-1/SB 160, not codified by the General Assembly, provides that: ‘‘This Act shall be known and may be cited as the ‘Back the Badge Act of 2017.’ ’’