Bat?
Yes, one was assigned finally, after Joe got caught trying to give him a sweet heart deal and it was rejected by the court for it's unprecedented terms. Once that happened, political pressure was why a Special was appointed. The laptop was filled with evidence, hence why he needed a blanket pardon for over a decade, and the rest of the family needed blanket pardons for crimes against the United States.
It also opened the door to the impeachment investigation in to Joey Xiden himself, but give that his own DOJ said he was too senile to prosecute at this time, it was a little late...but the fact he's too senile, doesn't erase his crimes