Former BND chief August Henning is suspected of illegally obtaining more than 2,000 classified documents and using classified information to prepare an analysis for an alleged Azerbaijani intelligence contact.
Investigators are still investigating whether the surgery was actually delivered.
Hanning, who was arrested on suspicion of attempted treason and espionage, allegedly received the documents from his former head of office at the BND, Manfred D., who was also arrested.
Source: DER SPIEGEL