An unlawful assembly is three or more persons assembled together, with them or any of them acting in a violent manner, and with intent that they or any of them will commit a public offense. A person who willingly joins in or remains a part of an unlawful assembly, or who joined a lawful assembly but willingly remains after the assembly becomes unlawful, knowing or having reasonable grounds to believe that it is such, commits an aggravated misdemeanor.
Iowa Code § 723.2
2021 Acts, ch 183, §45, 48
Referred to in §723.4