SAO focused on levying the duties after the accession of the Czech Republic into the EU
Auditors from the Supreme Audit Office (SAO) focused on the duties and the part of the levied finances, which should be used to cover the expenses of the duty administration. The audited period extended from 2004 to 2006, including associated data from the previous time. The audited bodies were the Ministry of Finance (MF) and the General Directorate of Customs (GDC).