File photo of Ferrari Formula One Driver Michael Schumacher of Germany Celebrates After Taking the Pole Position at the End of the Qualifying Session for the Bahrain Formula One Grand Prix at the Sakhir Racetrack in Manama
IN PHOTO: Ferrari Formula One driver Michael Schumacher of Germany celebrates after taking the pole position at the end of the qualifying session for the Bahrain Formula One Grand Prix at the Sakhir racetrack in Manama in this March 11, 2006 file picture. Reuters

The perpetrators who reportedly sent the emails offering Michael Schumacher's confidential medical records have been traced and found to originate from Zurich, Switzerland's largest city.

The Local reported the suspected perpetrators used the name "Kagemusha," a Japanese word which means "shadow warrior." The said individual or group has sent emails offering Schumacher's medical records in exchange of 60,000 Swiss francs. The emails were traced indicating the Internet Protocol (IP) address came from a computer in Zurich. But the identities of the culprits are yet to be known.

"Nobody has been identified as the author of these acts," chief investigating officer Jean-Yves Coquillat told AFP. "The investigation continues and is far from having concluded," Coquillat added.

Now that the trail of Schumacher's stolen medical records has led to Switzerland, the investigators are seeking assistance from Swiss and German authorities to further unearth significant leads.

According to the reports, the stolen documents contain an 11- or 12-page rough draft summary report from the Grenoble doctors who treated Schumacher for more than five and a half months. Sonntag, a Swiss newspaper, reported strangers may have taken pictures of the medical documents during Schumacher's transfer from Grenoble to Lausanne.

Sabine Kehm, Schumacher's manager, was adamant and insisted the public, especially the media outlets, not to buy or publish the documents.

After more than five months in Grenoble Hospital, Schumacher is now in Lausanne, Switzerland to continue his long and extensive rehabilitation program.

Blick.ch reported the management of the medical facility where the retired Formula One (F1) racer is being nursed has employed stern and strict rules, such as getting rid of camera phones or smartphones to ensure that no images or documents of the F1 champion reach the general public.