Pat Hickey is due to speak with police in Rio later today.
The former President of the Olympic council of Ireland is one of two Irish men being investigated in connection with alleged ticket touting at the summer games.
He was released from jail last week and is due to speak with officers today. It is expected his case will be handed over to the courts later this week.
It comes as Kevin Mallon refused to answer police questions in Rio yesterday. Both men deny they've done anything wrong.
Reporter Matt Sandy in Rio said police had previously questioned Kevin Mallon, and something in their subsequent investigations let them to wish to re-question him, but he refused to answer questions.