Since 2001, Marián worked for the Slovak Police Force in the field of criminal intelligence and criminal investigation (he served the SK police force since 1997, started as a public order and riot patrol until his retirement in February 2017). He went through several job positions, incl. leader and managerial functions where he has been using analytical tools progressively and permanently within the criminal intelligence analysis and criminal investigations. He has under direct supervision a team of Criminal Intelligence Officers who were responsible for the area of serious organized crime, particularly in field of corruption, financial crime, oversight, internal investigation, money laundering and drugs incl. airport passenger risk management. Since 2012, he has represented the Slovak Republic in different working groups on international level. Among others, he was a member of the EU´s EMPACT priority Synthetic Drugs group. Under his supervision there were proceeded the overall international cooperation within the drug related matters, incl. money laundering and asset recovery. He has obtained his skills and competencies during his university study, participating in seminars and courses, but mostly by practical experience during his duty as a criminal intelligence officer and team leader in real cases. These cases were involved in serious organized financial and economic crime, bribery, corruption, money laundering and drugs.
Now, he is responsible for the overall operational coordination within Europol in the field of Serious Organised Crime and Terrorism, including the management of International Major Event Support towards Europol’s main stakeholders.