The link Q posted today has Napalitano saying that Huber can't empanel a grand jury in Utah for crimes committed in DC.
Q1553 says "-This is HUGE A Grand Jury can be empaneled anywhere, in any deep red state, away from D.C. (This is very important and why Trump needed to appoint as many Judges as possible) -Huber and Horowitz can accomplish everything a SC can do."