St. Louis—On Wednesday, March 31, Judge Audrey G. Fleissig of the U.S. District Court for the Eastern District of Missouri ruled that an ACLU of Missouri lawsuit filed against St. Louis City police officers and the City of St. Louis challenging the use of chemical munitions after a protest should move forward to a jury trial. The lawsuit alleges that the deployment of chemical munitions from a military-grade armored vehicle in 2015—after the plaintiffs had dispersed from a protest following the killing of Mansur Ball-Bey by a St. Louis City officer—was retaliation in violation of the First Amendment.