Sławomir Tkacz
University of Silesia, Poland, Poland
dr hab Sławomir Tkacz - professor at the University of Silesia in Katowice,advocate , since 2007 - an employee of the Polish Ombudsman's Office; his scientific interests cover the theory and philosophy of law, especially the issues of law vs. values, the principles of law and its validity, as well as the question of legal interpretation and argumentation.