Kostiantyn Melnyk, Head of the Department of Labor and Economic Law of the Faculty № 2, Doctor of Legal Sciences, Professor, Police Lieutenant Colonel, and Nemyshliany District Police Officer of the Main Department of the National Police in Kharkiv region, Police Major Kostiantyn Kovalenko conducted a binary lesson on the subject "Commercial Law" on the topic "Liability in Commercial Law" for students of several groups of the Faculty № 5 (http://univd.edu.ua/uk/news/12140).