https://www.cnet.com/roadshow/news/tesla-model-3-production-musk-criminal-investigation-justice-dept-fbi/

According to the WSJ's report, FBI agents have been reaching out to former Tesla employees to get them to testify if a criminal case goes to court. The FBI also reportedly sent out subpoenas to ex-employees and sought interviews with them in order to better determine whether Musk's statements were made with the knowledge that there was no way they could be true.

"Earlier this year, Tesla received a voluntary request for documents from the Department of Justice about its public guidance for the Model 3 ramp and we were cooperative in responding to it," a Tesla spokesperson said in a statement. "We have not received a subpoena, a request for testimony or any other formal process, and there have been no additional document requests about this from the Department of Justice for months."