From what I gathered from the Huber and Durham is that Huber was handling the Military (non-civ) deep investigations using the 470 investigators and Durham who is handling the civilian (Civ) end of it…they probably passed on info back and forth pertaining to Non-Military interests and Civilian interests to whatever their cases were handling at that moment…
for instance…If both Military and Non-Military interests were involved…I'm pretty sure there was interim lawyers who were handling the cross patterns between the two.