Initially arrested in Germany in 2009, the accusations against him by German courts have been dropped. Greece has been demanding his extradition since 2009, and considers him a fugitive from justice. Christoforakos during his trial in Germany testified to has bribed (2%) both the two political parties, ND and PASOK (through Geitonas, partner of Kostas Simitis, and Vartholomeos). In July 2017, Mantelis was found guilty by Greek courts of bribery and money laundering, receiving an eight-year suspended sentence. In October 2017, prosecutor Georgios Voulgaris reiterated the warrant to bring Christoforakos (including five German nationals and ex-Siemens top figures) to trial, making it the third time Greek Justice made this demand.