Robert Murat exits a police station wearing dark glasses after being interviewed about the disappearance of Madeleine McCann.
Murat, accompanied by wife Michaela Walczuch, was questioned at Faro police station by Portuguese officers while British police watched on.
The British ex-pat IT consultant was the first 'arguido' (named suspect) by Portuguese police in the case of missing Madeleine McCann, back in 2007. The arguido label was removed the following year.
He is not classified as a person of interest by the new inquiry involving Scotland Yard officers from Operation Grange.
Murat was interviewed as a witness on Wednesday. He told the Guardian recently his conscience was clear and he would co-operate fully with police.
"My conscience is clear and I have no problem speaking to police again," he said.
Madeleine McCann vanished from the Ocean Club hotel in the Portuguese Algarve town of Praia da Luz, while on a family holiday.
Murat was never arrested over her disappearance and won a libel payout from British newspapers over coverage of the case.