MADISON, Wis. (AP) — A bill revamping officer-involved death investigations would mean a culture shift for Wisconsin's largest police departments. The measure would require every department to adopt policies requiring an investigator from a different agency to lead probes into officer-involved deaths. The bill's authors say the measure will fight perceptions that police protect their own. The state's larger agencies, including the Green Bay, Madison and Milwaukee departments, investigate their own officers. The bill will mean they'd have to hand over their probes to outsiders. Green Bay Police Lt. Chad Ramos says his department prides itself on transparent investigations and questions why people don't trust police departments to investigate their own officers. Gov. Scott Walker has signaled he'll likely sign the legislation soon.