Thousands of people gathered in Berlin on Saturday to protest against restrictions put in place to combat the spread of the new coronavirus.
Around 6,400 will head home — but will be redeployed back to Europe on a rotational basis — while 5,400 will be sent to countries including Italy, Belgium and Poland.
Police gave no details of how the allotment search is connected to the case or what they hope to find.
Germans appear more confident about life post-lockdown than the French, Spanish and Italians, a Euronews-commissioned poll has found.
Baden-Württemberg Culture Minister Susanne Eisenmann said the ban would encourage "togetherness" and "open communication", which she says can't be achieved with a veil.
Police in Germany arrested a suspect accused of stealing officer's weapons on Friday, after a five day manhunt in the Black Forest for a man nicknamed "Rambo".
A documentary is being made which follows their fight.
The 36-year-old was able to reproduce an entire set of famous landmarks, including the Leaning Tower of Pisa and the Eiffel Tower, on his field in northern Germany as the country took over the EU Council presidency.
From post-Brexit trade deal negotiations to agreeing a coronavirus recovery fund, Germany's EU presidency inbox is already filling up.
The investigation was launched in October after police arrested a man in Bergisch Gladbach, near the western city of Cologne.