It states former federal employees   --                Summary and Purpose of Legislation H.R. 4917, the Inspector General Subpoena Authority Act,   enhances the ability of inspectors general to identify waste,   fraud, abuse, and mismanagement in the Executive Branch. The   bill authorizes inspectors general to issue testimonial   subpoenas for contractors, grant recipients, and former federal   employees, as necessary to perform the functions required by   the Inspector General Act of 1978.\1\  You can see this at: https://www.congress.gov/congressional-report/115th-congress/house-report/799/1?overview=closed