Something else to keep in mind is that while the whistleblower complaint may be inadmissable in court on account of hearsay, everything the Congress digs up through its oversight authority, which is broad, sweeping and with very few limits while compelling organizations and not people to hand over evidence about the conduct of the organizations (and the people working for them).
Which largely means the 4th and 5th Amendements of the USA Constitution do not apply, and any evidence the Congress finds, it can hand over to the courts without there being any question of their admissability. Because they are, they were acquired legally as a result of Congress oversight authority finding things that need further proceedings in court.
Which largely means the 4th and 5th Amendements of the USA Constitution do not apply, and any evidence the Congress finds, it can hand over to the courts without there being any question of their admissability. Because they are, they were acquired legally as a result of Congress oversight authority finding things that need further proceedings in court.