I'll tell you what happened on 8 August. They didn't believe their story.
"Neves stated bluntly that they didn’t believe my version of events."
Why isn't this informal? interview, in the files I wonder.
This is an excerpt of the story concerning your quote, in case anyone who insists on cites is interested...... with a Link
WEDNESDAY AUGUST 8. At the police station we were greeted by Luís Neves and Guilhermino Encarnação, director of the Algarve Policia Judiciária.
There had been a shift in the investigation, they said. They had always been optimistic Madeleine was alive, but things had changed.
Tell us about that night, they said. Tell us everything that happened after the children went to bed. I gave them every detail I could remember, as I had before.
Sniffer search ... dogs are taken around the McCanns' holiday apartment
This time they responded by just staring at me, shaking their heads.
Neves stated bluntly they didn't believe my version of events. It "didn't fit" with what they knew.
Didn't fit? What did they know? I began to wail hysterically, drawing breath in desperate gasps.
They proposed that when I'd put Madeleine to bed that night, it wasn't actually the last time I'd seen her. But it was. It was! I felt I was being bullied, and I suppose I was. I assume these tactics were deliberate - knock her off balance by telling her that her daughter is dead and get her to confess.
On and on it went. They tried to convince me I'd had a blackout - "a loss of memory episode", I think they called it.
My denials, answers and pleas fell on deaf ears. This was their theory and they wanted to shoehorn me into it, end of story.
At last they seemed to decide that the interview was over. Then it was Gerry's turn. Through his tears he pleaded with the two men: "Do you have evidence that Madeleine is dead? We're her parents. You have to tell us."
"It's coming," Neves told him. "It's coming!"
Gerry wanted to know if the case had now become a murder inquiry. The answer was indirect: "You can probably guess that from our lack of response."
http://themaddiecasefiles.com/post186821.html#p186821