I don't know if this is a bug or mistake, but when I was playing as Hlaalu house member when I've found out that Jar'Jo-Zhid is a Hlaalu spy, in the dialogue with Davor Indri,  where you should tell him who is a spy, there wasn't his name among the answers. 

I could choose Llaynasa, Rulene or Ja'Weer, but not the Jar'Jo-Zhid. There is little sense to choose him if you're part of the House Hlaalu, but you should at least be able to set him up.