Looking for help with Isra quest

There might be some spoilerish stuff here, so be careful!


After you get the records, what do you do with them? They just say that they will take a while to search through. Is there a way to actually use them? And the couple of key characters who un-ass the area, where are they to be found? Isra is getting antsy and I can't seem to make progress! Any help would be appreciated.