Over the next year, the federal grand jury investigation continued, and Levin eventually was called to testify. Southern Company took the position that Levin was not permitted to testify because his knowledge was subject to attorney–client privilege. Southern Company finally agreed to allow Levin to testify, but only on the limited subject of his conversation with Jake on the morning of the plane crash. Southern Company would not permit Levin to talk to the National Transportation Safety Board or the Escambia County Sheriff's Office.