He then spent three years as a staff member in the German parliament Bundestag and began a part-time study of history, law and politics at the University of Bonn.
[6][7] In 2006, allegations were made that in his capacity as an entrepreneur he had inflated invoices and cheated a contractor of a larger amount of money within the context of the insolvency of one of his companies.
[1] On 28 January 2012, Stettner stepped down from the parliamentary group after the Berlin public prosecutor's office filed charges against him for suspicion of fraud, insolvency protraction, and wrongful withholding of social services.
[11] Stettner was found guilty of subsidy fraud, insolvency protraction, and the withholding of social security contributions and sentenced to one year probation.
[13] The appeal proceedings before the Berlin Regional Court were concluded in mid-2015 and Stettner was ordered to pay €36,000, after which he resumed activity in the CDU parliamentary group on June 23, 2015.