On 23. and 24. March, 2017 the Supreme Court – Administrative department of the Republic of Slovenia and the Association of the Councils of State and Administrative jurisdictions of the European Union (ACA-Europe) hosted the seminar “Administrative sanctions in European law” where representatives of the Supreme administrative jurisdictions from more than 25 states, together more than 50 participants, shared their insights, approaches and case law developed on the level of the EU Court of Justice and the European Court of Human Rights as well as in their countries in the area of administrative sanctions.