First-hand knowledge is required for an “urgent concern”, which is a complaint that can be forwarded directly to congress. Second-hand knowledge can be used within the ICIG’s own system, but is not eligible for submission to congress until confirmed, I think.
I am curious as to why the ICIG decided that POTUS is within his jurisdiction, which is an explicit requirement from the statute.
I think that's right and I know the IG determined that the WB had direct knowledge of some of the claimed acts.
It's all in the ICIG's statement I linked to up thread. I'm mobile now and can't cut and paste from a PDF or I'd post the text.