The state Department of Justice is not investigating the Oregon Department of Human Services, according to Attorney General Ellen Rosenblum.
Rosenblum heads the DOJ and its criminal and civil divisions, which can investigate and bring legal action against state agencies and their employees for malfeasance.
Of course, DHS officials have known for eight years that they weren't even close to meeting federal standards in areas such as prevention of child abuse, timely management of cases, and other issues. But it's all good, because Ellen's a reliable Democratic - as are DHS "managers". So no investigations are needed. It'd be a different story if a Republican was involved, but since that's not the case, it's a non-issue.