Mr. Ziogas, a native of Athens, obtained his law degree from the Faculty of Law of the National and Kapodistrian University of Athens. After graduation, he practiced at the law office of Mr. Nikolaos Androulakis (Professor of Criminal Law at the National and Kapodistrian University of Athens) in preparation for the bar examination. He passed his bar exam with honors and became a member of the Athens Bar Association.Since 1993, he has been arguing cases before the Supreme Court.

For over ten years, he was a partner at Nikolaos Fountedakis & Dimitrios Tsatsos’s law firm. The latter, Mr. Tsatsos, was a professor of Constitutional law .During this time, he also collaborated actively with eminent criminal lawyers such as Stelios Papalois. Takis Papas (former president of the Athens Bar Association), and Gianis Diamandis.

Since 1988, he has been legal counsel to VIOSER SA PARENTERAL SOLUTIONS.

In addition, he has provided extensive, external law services (for criminal cases) to the EKO SA GREEK FUELS OILS.

Also, he is a member of the Greek Legal Association.