article_snippet: Difference in investigation procedures: .
article_snippet: Under Wisconsin law, an outside agency is tasked with investigating police-involved shootings.
article_snippet: In the case in Madison, that would be the Division of Criminal Investigation.
article_snippet: Once DCI completes the Division of Criminal Investigation work, findings will be delivered to the local district attorney, Chief Koval said.
article_snippet: On Monday, Gov. Scott Walker issued a statement saying that another layer of investigation will come from the Wisconsin Department of Justice, which will conduct an independent investigation -- a requirement of all officer-involved deaths.
article_snippet: Ferguson asked the Wisconsin Department of Justice to conduct an independent investigation into Brown's killing.
article_snippet: Difference in how authorities described victim's past .