MO SB21

Restricts law enforcement use of deadly force to situations where the person poses a "clear danger" to the officer or others, eliminating previous justifications including fleeing felons or escape attempts

Requires the attorney general to appoint a special prosecutor to investigate all incidents where an officer uses deadly force or shoots and injures a person

Mandates all law enforcement agencies obtain accreditation by the Commission on Accreditation for Law Enforcement Agencies by July 1, 2016, with unaccredited agencies losing eligibility for state and federal funding

Requires peace officers to wear body cameras while on duty, with recordings preserved for at least 30 calendar days, and non-compliant agencies losing funding eligibility

Establishes protest-specific rules prohibiting officers from hog-tying protesters, requiring visible name tags, banning verbal abuse of protesters, and restricting tear gas use to declared emergencies with human rights organization certification