Swiss ambassador to Moscow Erwin Hofer said this on Thursday live on the Echo of Moscow radio.
Switzerland adheres to the presumption of innocence principle and this is why there can be no talk of the guilt of the air traffic controller of the SkyGuard company.
"Since results of the investigation have not been published, nobody can draw conclusions on somebody's guilt," the Swiss ambassador said.
Mr. Hofer recalled that the investigation into the causes of the catastrophe above the Bodensee has been entrusted to Germany and concerns four parties - the United States, Germany, Russia and Switzerland.
The Germans are to publish the investigation report, Mr. Hofer said.
The two planes - the Tu-154 of the Bashkir Airlines company and the American Boeing-757 - crashed in the German sky in the early hours of July 2, killing 71 persons, 52 children among them.
The SkyGuard Co. air traffic controller Peter Nielsen, on duty at the moment of the air crash, was killed last Tuesday. The suspect is Vitaly Kaloyev of Russia, who lost his family in that crash.
Mr. Kaloyev was arrested the day after in a Kloten hotel. Mr. Kaloyev denies his guilt.