Apparently the FBI investigates bankruptcy fraud:

https://www.fbi.gov/about-us/investigate/white_collar/bankruptcy-fraud

Quote
The U.S. Trustees Program, part of the Department of Justice, oversees the bankruptcy system. When it uncovers suspected fraud, it refers the information to the appropriate U.S. attorney and to the FBI. Working closely with the U.S. Attorney’s Office, our field office investigators open a case if warranted and begin conducting interviews and reviewing financial documents. Based on the complexity of the case, we can also use techniques like undercover operations and court-authorized electronic surveillance to gather additional evidence.


Results of a some past fraud cases:

https://www.fbi.gov/springfield/press-releases/2014/springfield-man-sentenced-for-bankruptcy-fraud

https://www.fbi.gov/boston/press-re...leads-guilty-to-bankruptcy-fraud-charges

https://www.fbi.gov/neworleans/pres...ty-man-pleads-guilty-to-bankruptcy-fraud

https://www.fbi.gov/houston/press-r...ouple-sentenced-in-bankruptcy-fraud-case

https://www.fbi.gov/newark/press-releases/2012/florida-man-arrested-charged-with-bankruptcy-fraud

https://www.fbi.gov/buffalo/press-releases/2015/east-amherst-man-indicted-for-bankruptcy-fraud

https://www.fbi.gov/milwaukee/press-releases/2015/middleton-man-charged-with-bankruptcy-fraud

Lots more here: http://search.justice.gov/search?af...ch&page=1&query=Bankruptcy+Fraud