federal police investigators -- not local police -- will investigate Tony Robinson 's killing by police . Wisconsin and Connecticut are the only states that require independent probes in such cases . 12 states have pending investigations requiring outside investigators to examine the involved suspects .
Wisconsin state investigators -- not local police -- will investigate Tony Robinson 's killing by officer . Wisconsin and Connecticut are the only states that require independent probes in such cases . 12 states have pending legislation requiring outside entities to examine police involved shootings .