I believe they asked for the charts and any video or audio on the polygraph. The polygrapher's report on the two questions has been in evidence for some time. The committee released a letter and 3 emails to Ford's lawyers, and also note Grassely's tweets and statements in reference to the offer made to go to CA to interview Ford.
So I looked into the thing with Berchem and these texts a bit. The SJC received Berchem's statement and summary last Friday, and the FBI also received it last Friday, before the NBC News story was released on this last Monday.
The NBC story spawned many other stories that are in the headlines still. I'd note that NBC misquotes Kavanaugh, mis-attributes other's quotes to him, uses inaccurate quotes and switches their context, and then based on these things, implies Kavanaugh committed a crime. Maybe he did, maybe he didn't, but I know the quotes are ****ed, because I looked up every quote in the original source material. Reporters used to do that for you. Regardless if K is the biggest criminal in DC or not, the inaccuracies in that story are just depressing.