The man allegedly recruited his victims online by purporting to be a foreign diplomat, convincing them of his credentials and defrauding them of significant amounts of money.
Fraudulent stories of windfalls and inheritance were allegedly sent to victims.
The arrest is part of Operation Dunkley which was formed to reduce the number of Nigerian scammers in Western Australia.
The offender was charged with 27 offences of fraud and 4 counts of money laundering. Detectives are continuing to investigate his involvement in other similar offences.
Recently an
Australian man lost US$1.8 million in a Nigerian email scam last August.