On 5 August 2016, the day of the 2016 Summer Olympics opening ceremony, police in Rio de Janeiro arrested two people for attempted illegal resale of hundreds of tickets allocated to the OCI. One of the two was employed by THG Sports, which was the OCI's authorised ticket reseller (ATR) in 2012 but not 2016; the OCI denied any involvement. Shane Ross, the Irish Minister for Sport, promised a "robust inquiry". Pro 10 Sports Management, the OCI's 2016 ATR, said the man arrested was working as their agent to distribute tickets which had been paid for legitimately. On 17 August, Pat Hickey, the OCI president, was arrested in Rio in connection with the investigation. The issue, together with the allocation of tickets for other Olympic events, was set for investigation by a non-statutory inquiry headed by retired High Court judge, Mr Justice Carroll Moran.