No. What she wants to know is which agency has the authority to determine whether allegations that somebody broke the law/statute have merit and whether charges should be levied.
Usually it is rather specific about which authority has jurisdiction and how narrowly or broadly the statute can be applied when acting on any allegations.
I do believe that is what she is asking. However, and clearly in my opinion, the answer to that is the Department of Justice. That is their primary purpose, of course. To evaluate the law, and then bring charges against those they believe have violated it. But, they must of course prove their interpretations are correct, before judges and sometimes juries.
She should know this, and probably does, but doesn’t like that answer, so is fishing for someone else in government who could give a different interpretation than the one the DOJ is currently presenting her. If the DOJ truly did their homework, they will reply with government organizations they consulted, before bringing the charges forward, which is actually their role.