After graduating from high school, lawyer Wittmann studied law at the Ludwig Maximilian University in Munich. After the first state law examination, he completed a three-year legal traineeship and graduated with the second state law examination. He has been admitted to the bar since May 23, 1991, and has held the title of specialist lawyer for criminal law since October 1, 2001.
Since his admission, lawyer Wittmann has worked nationwide as a criminal defense lawyer. He advises and represents clients in all areas of criminal law and traffic law, with a particular focus on drug law.