On 1 July 2011, amid accusations of corruption scandals, the Hellenic Parliament voted in favor of pressing charges against him.

[9] In 2004, he came under strong criticism by members of the press and Greece's political scene in regard to his wedding in Paris and the reception that followed at the Four Seasons Hotel in order to have a view of the Eiffel Tower.

[12] On 30 May 2010, the Greek newspapers I Kathimerini and Proto Thema publicized their discovery that Tsochatzopoulos and his wife Vicky Stamati, had purchased a house for one million euros from an offshore company on Dionysiou Areopagitou Street, in one of Athens' most prestigious neighborhoods, only a few days before parliament passed a series of austerity measures aimed at increasing taxes and combating tax evasion.

[13] In early 2011, following an investigation by a specialized committee of the Hellenic Parliament, evidence emerged that Tsochatzopoulos was also involved in the Siemens scandal.

"[14] On 31 March 2011, a parliamentary committee decided to inspect Tsochatzopoulos' assets, as well as those of New Democracy politician George Alogoskoufis and another former minister of the same party, on whose account deposits of up to €178 million were found.

According to the newspaper Real News, representatives of the German company Ferrostaal thanked Tsochatzopoulos for its being chosen to supply submarines for the Greek Navy before a deal had been signed.

[19] A few days later he asked the Areios Pagos (Greece's supreme court) to move faster with the investigation of his assets.

[21] On 6 June 2011, the committee decision in relation to the purchase of the German submarines was handed over to the president of the Hellenic Parliament.

[22] The committee suggested that Tsochatzopoulos be criminally charged for attempting to pass off money obtained through illegal means as legitimate.

[23] The same day he gave an interview to the Greek TV channel Skai where he denied all charges and said that the accusations were a plot against him.