SAN JOSE, Calif.—Elizabeth Holmes, the convicted founder of Theranos Inc., appeared in federal court Monday to make a case for a new trial, based on a surprise visit to her home by a former lab director at the blood-testing startup who allegedly expressed regret for his role in her prosecution.
Last month Ms. Holmes requested a new chance to prove she is innocent of criminal-fraud charges after Adam Rosendorff, the former Theranos lab director, made an unannounced visit to her home. Dr. Rosendorff took the witness stand in the San Jose, Calif., courtroom Monday morning to face questions from U.S. District Judge Edward Davila, Ms. Holmes’s attorney and government prosecutors.
