There are calls for the inquiry into the Olympic ticketing scandal announced by the Government to be open and transparent.

Sports Minister Shane Ross says a retired judge will be appointed next week to lead a non-statutory Inquiry into the controversy.

He says the terms of reference would be finalised shortly after that and he hoped it could complete its work in 12 weeks.

The board of the Olympic Council of Ireland will meet over the weekend to discuss the controversy. They say they have been unable to meet until now because of the ongoing games.

The OCI said it will co-operate fully with a State inquiry and will also appoint an external independent company to carry out a review.

Sinn Fein's spokesperson on Sport Imelda Munster says a non-statutory inquiry “doesn't go far enough.”

The judge will be appointed next week with the investigation expected to take up to 12 weeks.

It comes as President of the Olympic Council of Ireland Pat Hickey is detained in Bangu prison in Rio. He is facing charges relating to the illegal resale of tickets. The OCI said Mr Hickey will be getting his own legal advice.

Sports Journalist with the Sunday Times David Walsh says the situation comes at a difficult time for authorities in Brazil:

“The Rio de Janeiro games haven't been an entirely joyous experience for the Brazilian people. The legacy for them will be huge expense, money that has to be paid, back so that might weigh against the solution that you might normally expect, i.e. the IOC might try and help out one of their own.”