Washington: Noelle Maloney, who was second in command of the US Securities and Exchange Commission’s troubled internal watchdog office, has left the agency.

Maloney served as the SEC’s deputy inspector general since 2008, a period in which the office produced landmark investigations including probes of the agency’s failure to catch the Bernard Madoff and R. Allen Stanford frauds. Her last day at the agency was August 17, SEC spokesman Kevin Callahan said on Friday.

The office has been in turmoil since March after an employee complained to the SEC that possible conflicts of interest involving former inspector general H. David Kotz could have tainted the integrity of certain reports the agency produced. David Williams, the US Postal Service’s inspector general, is conducting an investigation into the allegations.

Following the January departure of Kotz, who has denied any wrongdoing, Maloney served as interim inspector general until the agency named Jon Rymer, inspector general for the Federal Deposit Insurance Corp, to temporarily take over the office.

Maloney holds a degree in English from the College of New Jersey and a law degree from Rutgers School of Law-Camden, according to the SEC. Prior to joining the SEC in 2005, she worked for the U.S. Peace Corps and the National Institutes of Health. Attempts to find contact information for Maloney were not successful.