The 1997 Tour de France winner was sacked by his T-Mobile team in July and barred from taking part in this year's race after he was implicated in the Spanish doping investigation.
Spanish Civil Guard found over 100 bags of frozen blood in raid on addresses in Madrid and Zaragoza, two of which bore the label "hijo de Rudicio" (son of Rudicio) which is believed to refer a rider under the supervision of former T-Mobile sporting director Rudy Pevenage.
"The judge in charge of the case is prepared to sent the state prosecutors in Bonn a sample of blood," court spokeswoman Elisa Beni Uzabal was quoted as saying in the daily Sport.
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"At the start of September, a representative from the state prosecutors in Bonn was in Madrid and asked for samples, but at that time there was no official request to which the judge could respond."
Officials from Germany's federal crime office and a team of investigators working for state prosecutors in Bonn raided Ullrich's Swiss home on Wednesday as part of a international probe into suspected doping abuses in the sport.
Ullrich, who has consistently protested his innocence, said on his website that the raid had interrupted his honeymoon and forced him to return to his home in the town of Scherzingen, just south of the German border on Lake Constance.
"My wife and I are deeply hurt by the raid and confiscation of items," Ullrich wrote.
"Because of this we have interrupted our honeymoon and driven home. My attorneys are now looking into the case with state prosecutors in Bonn."
The Sueddeutsche Zeitung newspaper reported that authorities had obtained items containing Ullrich's DNA in the raid.
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