Analyst of the NCOZ (National Center against Organized Crime of the Criminal Police and Investigation Service) with 27 years of experience in the field of tax evasion and tax crime, which he acquired from the Financial Administration of the Czech Republic and later from the Police of the Czech Republic. At the audit department of the tax office, he specialized in the selection of tax entities for the control and search for risks in tax administration. He joined the Czech police as a tax specialist in 2004 at the then newly established police department, the so-called Financial Police (Department for the Detection of Illegal Income and Tax Crime, SKPV). Since then, he has been investigating and investigating the most serious forms of financial and tax crime within the specialized police forces. Since 2008, he has been a methodology for tax crime within the entire Police of the Czech Republic.