By Ally Jarmanning, WBUR Reporter January 7, 2021 Proponents eye a new vote Mayor Walsh on Monday vetoed an ordinance that would restrict how and when police can use tear gas, pepper spray, and rubber bullets, saying in a statement that he had legal concerns with the measure, and that he supported restrictions on the so-called “less lethal” equipment in the newly signed state police reform law. “We strongly believe CCCAs [chemical crowd control agents] and KIPs [kinetic impact projectiles] are only to be used when absolutely necessary to prevent violence or riots so people can safely and peacefully exercise their First Amendment rights,” Walsh said. “This community policing principle is something our Boston Police Department is committed to ensuring, along with the appropriate conduct by officers.”