Portuguese police say "material collected" throughout three days of looking for Madeleine McCann might be despatched for testing in Germany.
It comes because the search ended as tents have been taken down and heavy equipment was faraway from the positioning.
Officers have spent three days combing a reservoir and surrounding scrubland after receiving "certain tip-offs".
It's not but recognized if something important was discovered, however a lot of baggage have been taken from the positioning.
In an announcement police in Portugal stated: "[the search] resulted in the collection of some material that will be subject to the competent expertise.
"The materials collected might be handed over to the German authorities".
A police boat entered the water at the Arade dam in Silves municipality on Tuesday.
Search groups began to dig in an space of land on a peninsula on the Barragem do Arade on Wednesday afternoon.
A supply near the investigation informed the Reuters news company there was "nothing to report" after the search, which concerned reducing again an unlimited space of undergrowth and utilizing rakes and pickaxes, in addition to sniffer canines.
German prosecutor, Christian Wolters, added: "Of course there is a certain expectation, but it is not high."
He informed Reuters that it was vital to indicate that authorities have been investigating the case.
The reservoir is about 31 miles from the place the British girl went missing during a family holiday in Praia da Luz in the Algarve on 3 May 2007. Madeleine was simply three years previous on the time.
"Of course we are still looking for the body," Mr Wolters stated. "We're not simply on the lookout for that, in fact. There are different issues too.
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"Any discovery of clothes may assist the investigation," he said.
German prosecutors last year named Christian B an official suspect in Madeleine's disappearance.
It is claimed the convicted baby abuser and drug supplier used to go to the reservoir, allegedly referring to it as "his paradise".
Christian B is at the moment in jail for raping a 72-year-old girl in the identical space of the Algarve area from the place Madeleine went lacking, however he has not been charged with any crime associated to the teen's disappearance.
The new search was ordered because the Home Office granted an additional £110,000 in funding this monetary 12 months for the Metropolitan Police to help with discovering Madeleine, down from simply over £300,000 final 12 months.
The complete funding given to Operation Grange - the identify given to the Met's investigation into Madeleine - has been just below £13.1 million since 2011.
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