The IG and Congress can make referrals to the DOJ to prosecute.
What we still need is a DOJ configuration or a Special Prosecutor who would prosecute Deep State crimes.
Until that happens, there is no path to draining the swamp.
Ordinary citizens just get arrested if evidence is found of a crime, then sit in jail or bail out until the trial. Why do they have to get referred to the JD and then maybe prosecuted. Gives the perps all kinds of time to bribe and obstruct.