the DOJ is supposed to take such referrals and decide whether they should be investigated. If they should be then they begin doing so and gathering evidence. If the evidence accumulates sufficiently, a grand jury is empaneled and determines if indictments are in order.
So no, its not a bill of attainder. There have been many times where the DOJ has refused the referrals. A bill of attainder would not give them the discretion to decide one way or another.
Bannon has shown all of us the way from this point forward. When you receive a congressional subpoena, do the following:
- Buy a plane ticket, (round trip) to DC
- Reserve a hotel room
- Show up to the hearing
- Exercise your 5th Amendment protections
- Fly home
- Continue online ranting about the J6 Committee you just gave the finger to