Leaders’ ethical competence and confidence is defined in this work as the use of a decision-making and problem-solving cognitive ability, independent of particular normative moral values. In two studies based on Piaget’s theory of moral development a training method for ethical autonomy has been examined. The study investigated a two-day education program on real life political ethics issues. The results showed clearly that political leaders and others who participated in the training program improved their ability to cope with ethical problems and retained it over a time of several years. That was shown both as a higher score on Ethical Competence Questionnaire – Political, and through a self-evaluation questionnaire