ARREST AG WILLIAM BARR for Inherent Contempt of Congress. Under the doctrine of "inherent contempt," the House or Senate could send members of its security force to arrest and detain the witness... LOCK HIM UP! WE CANNOT DEPEND ON WILLIAM BARR TO ARREST HIMSELF...

https://en.wikipedia.org/wiki/Contempt_of_Congress 
Following a contempt citation, the person cited is arrested by the Sergeant-at-Arms for the House or Senate, brought to the floor of the chamber, held to answer charges by the presiding officer, and then subjected to punishment as the chamber may dictate (usually imprisonment for punishment reasons, imprisonment for coercive effect, or release from the contempt citation). ^[10] 

Try My New Chicken Barr  - Cluck Cluck Clan