Saipan casino operator Imperial Pacific International (IPI) is under US federal investigation for possible wire fraud, money laundering and illegal campaign contributions to the local governor.

Last week, Federal Bureau of Investigation agents descended on Saipan to stage multiple raids on the offices of IPI and an IPI lobbyist, as well as the office and home of Commonwealth of Northern Mariana Islands (CNMI) Gov. Ralph Torres, a law firm run by Torres’ brothers and a local real estate firm.

On Thursday, local media reported that IPI’s attorneys had filed a motion seeking to stay a civil suit brought by IPI’s former construction workers. IPI maintains that the FBI’s criminal probe could force IPI execs to exercise Fifth Amendment rights against self-incrimination, which could complicate their ability to defend the company in the civil suit.

To support this motion, IPI’s attorney filed a copy of the FBI search warrants, which revealed that the feds were looking for any documents related to possible wire fraud, money laundering, conspiracy and contributions or donations to political figures by foreign nationals. Also cited in the warrants are Torres, his brothers, their relatives as well as IPI consultant Alfred Yue and realtor Ron Li Anderson.