- On 6-8 September 2019 was held in Athens the Congress of Association of Judges and Prosecutors on : “The New Penal Kodes”. A. Tzannetis dealt with the topic : “Amendments by the new Code of Criminal Procedure in the stage of open-hearing”
- In the context of the 10th Congress of “e-themis Union” in Athens on 17 and 18 May 2019 on the topic : “Towards a new system of Criminal justice- The new penal code and the new code of criminal procedure” A. Tzannetis reported on : “Alternative proceedings in the new code of criminal procedure”
- On 10 and 11 May 2019 took place in Patras a common session organised by Patra’s Bar Association and the European and International Criminal Law Institute. A. Tzannetis gave a speech on the New Code of Criminal Procedure
- The 8th Congress of Hellenic Criminal Bar Association on “The EU’s Criminal procedure” was held in Athens on 15 and 16 March 2019. A. Tzannetis gave a speech on : “National Constitutional Identity and Violation of fundamental Rights as refusal grounds for non-execution of EAW”
- A. Tzannetis intervened during the Session held on 15 February 2019 in Thessaloniki on : “The influence of European Court of Human Right in the domestic jurisprudence” on the topic “Change of criminal charge and art 6 par.3 ECHR”
- A. Tzannetis participated as a speaker in the conference held ον 15.2.2018 jointly by Hellenic Criminal Bar Association and Athens Bar Assocaition on: “Trials without defence attorneys? Art 340 grCP after its amendment by Law 4509/2017”
- A. Tzannetis was one of the speakers in the conference held by Hellenic Criminal Bar Association and European and International Criminal Law Institute on 5.4.2017 on the topic: “Transnational Cooperation in Criminal Matters (Extradition, European Arrest Warrant, Mutual Judicial Assistance).
- During the Workshop on Penal Law and Criminal Procedure organized by European University Cyprus held on 25.3.2017 in Nicosia A. Tzannetis gave a speech on: “The protection of fundamental Rights during the execution of European Arrest Warrant – Lessons from the ECJ’s Jurisprudence”
- In the context of the 8th Congress of “e – Themis Union” held in Kalambaka on 16 and 17 March 2017 on the topic: “Legal Dealing with pecuniary Claims and Debts” A. Tzannetis reported on: “Penal Consequences of Damage Restitution”
- On 24 and 25.6.2016 was held in Lefkas the Congress of Association of Greek Prosecutors on “Negotiated Criminal Justice”. A. Tzannetis was one of the speakers on: “Potential importation of Plea Bargaining in Greek legal system”
- Οn 12 and 13.5.2016 took place a common session organized by “Association og Greek Commercialists” , “Hellenic Criminal Law Society” and “Hellenic Tax Law Society” on “Pesponsiblty of Members of Board of Directors and shareholders according to commercial, penal and tax Law”. A. Tzannetis gave a speech on: “Possibe penal responsibility of the Members of General Meeting?”.
- The 7th Congress of Hellenic Criminal Bar Association on “The Right to Defence in Penal Trial – Aspects and Limits” was held in Patras on 15 and 16.4.2016. A. Tzannetis gave a speech on “The evolution of the traditional Defence Ideal – The new Role of Defence Counsel in Plea Bargaining”.
- A. Tzannetis participated as a speaker in the conference held on 22.2.2016 by Hellenic Criminal Bar Association on “Application of Law 4312/2014 (damage recovery through frozen assets etc)”.
- Α. Tzannetis participated in the round table and spoke on “asset recovery” during the congress held on 24. 4 and 25.5.2015 on: “A Cohesive Model to counteract crime and corruption in the Public Sector”
- Α. Tzannetis participated as a speaker in the conference held by Hellenic Criminal Bar Association on 21.10.2014 on the Draft of New Code of Criminal Procedure.
- A. Tzannetis gave a speech on “Victim – Offender Conciliation, Plea bargaining and alternative criminal Procedures” during a conference held in Thessaloniki on 31.1 and 1.2.2014 and organized by the Prosecutor Association, Hellenic Criminal Bar Assocaition and Thessaloniki Bar Association.
