Modifies provisions relating to civilian review boards

HB 2569 modifies Missouri's law governing civilian review boards for police oversight. It allows cities, counties, and city-county entities to establish or use existing civilian review boards to investigate public complaints about police misconduct, including excessive force, abuse of authority, or offensive language (such as slurs based on race, religion, gender, or disability). Boards must base findings on verified evidence, cannot rely solely on unsworn complaints, and cannot consider unsubstantiated prior complaints. The bill exempts cities with 125,000-160,000 residents, permitting them to create boards with broader authority to handle such complaints.