A riot is three or more persons assembled together in a violent and disturbing manner, and with any use of unlawful force or violence by them or any of them against another person, or causing property damage. A person who willingly joins in or remains a part of a riot, knowing or having reasonable grounds to believe that it is such, commits a class "D" felony.
Iowa Code § 723.1
2021 Acts, ch 183, §44, 48
Referred to in §123.56, 723.4, 901C.3