Cartoon:  by Cagle Cartoons / L.A. Daily News]

The Department of Justice has subpoenaed a high-profile whistleblower - Wells Fargo banker Yesenia Guitron - in its criminal investigation into Wells Fargo account scandal opening of accounts without customer permission.

Guitron is among at least 5 Wells Fargo employees who sued the bank or filed complaints with regulators alleging that they were fired after reporting the opening of customer accounts without their permission. The suits and complaints, filed between 2010 and 2014, raise questions about how early Wells Fargo knew about such allegations and how it handled them.

The Subpoena directs Guitron to bring all documents related to her employment at Wells, including any related to sales practices, discipline "or other form of retaliation taken against you by Wells Fargo or Wells Fargo employees."

GUITRON’S PERSONAL COMPLAINT & CLAIMS.    Guitron and another personal banker, Judi Klosek, filed complaints with OSHA, as well as a joint federal lawsuit in 2010, claiming Wells Fargo retaliated against them for blowing the whistle on similar conduct. Guitron alleged that managers responded by falsifying a paper trail that purported to document her poor performance, forbidding her from taking family medical leave and firing her improperly.

A federal judge ultimately dismissed Guitron's claims, saying Wells Fargo was justified in firing her because she failed to meet sales quotas and refused to meet with management.