The USCIS has provided the following information on its website:  “If you have knowledge of suspected criminal violations, misconduct, wasteful activities, and allegations of civil rights or civil liberties abuse, you may report them to the DHS Office of Inspector General. Calls can be made anonymously and confidentially.To make a report, call 1-800-323-8603 or email [1] DHSOIGHOTLINE@DHS.GOV.”

This is probably in reaction to recent high profile cases of alleged corruption.  No group or organization is immune from unsavory characters.  It is my understanding that USCIS employees go through very extensive background checks before being hired.

The great majority of officers I have met over the years have been hardworking, conscientious and fair-minded.  However, there should always be a mechanism for those who have been wronged to report the incidents without the fear of retribution.  Adjudication Officers literally hold the futures of the applicants in their hands and in no instance should that power be abused.