Media reports on Wednesday said the spying at the Chaos Computer Club's 2009 annual congress was made public when the ex-Marine gave witness testimony in June this year in the military trial of WikiLeaks source Chelsea Manning – the US soldier who was convicted, as Bradley Manning, and sentenced to 35 years in jail.
The then Stuttgart-based marine, identified in reports only as Matthew H, allegedly targeted Assange during the conference where he was speaking about the WikiLeaks platform, its German co-founder Daniel Domscheid-Berg and French Internet activist Jeremie Zimmermann.
Assange argued that such intelligence activity is illegal in Germany, local new sources reported, citing his complaint to the federal prosecutor's office in the city of Karlsruhe.
The office said in a oneline statement that "the complaint was received yesterday afternoon by the federal prosecutor. It will be examined here."
The media reports also said Assange had offered to testify by video link from Ecuador's embassy in London, where he has been holed up since June 2012 to avoid deportation to Sweden where he is wanted for questioning on sexual assault charges.
The Australian anti-secrecy activist denies the charges and said he fears being extradited to the United States, which wants to try him for publishing hundreds of thousands of US diplomatic cables and secret military communications from the Iraq and Afghanistan wars. – AFP