The U.S. Drug Enforcement Administration had refrained from firing agents who were found to have committed serious misconduct, according to recently disclosed records.

USA Today reports that DEA agents who were found to have attended “sex parties” paid for with drug cartel money were not fired, and the DEA has kept on employees who were found to have distributed drugs and lied to authorities.

Since 2010, the DEA’s Board of Professional Conduct recommended 50 employees be let go following misconduct investigations. Only 13 of those 50 were fired, according to these records.