South Australian mining industry executive Bob Johnson has been bailed after appearing in court charged with tax fraud spanning 15 years and worth more than $38 million.
The Australian Federal Police have alleged Johnson failed to disclose overseas trust assets in his income tax returns between 1999 and 2013.
The AFP said its Criminal Assets Confiscation Taskforce had also obtained restraining orders in the Supreme Court over a significant amount of assets.
Acting Commander Raegan Stewart said the charges against the 74-year-old followed a complex investigation involving joint-agency co-operation and engagement with overseas law enforcement bodies.
In Australia that involved the Australian Taxation Office and the Australian Criminal Intelligence Commission.
International law enforcement agencies included those from Jersey, the United States, the United Kingdom and the British Virgin Islands.
Johnson was charged with two counts of defrauding the commonwealth and 13 counts of obtaining a financial advantage by deception.
Each offence carries a maximum 10-year prison sentence.
Johnson came before Adelaide Magistrates Court for the first time on Friday and was granted bail to live at his Adelaide address.
He will return to court in September.
In 1981 he founded Maptek, a company involved in computer modelling of mines and geological sites.
Australian Associated Press