The goal of this article is to answer the question about the best assessment strategy for a legal Ethics course. To achieve this goal this article takes as an example a course program as a study case, lying on the premise that the complexity of certain problems demands not only a reasonable mastery of the conceptual apparatus for them to manage but a frequently assessed teaching-learning process. The article manages, in this way, some ethical-conceptual iussues which nowadays are discussed; the possibilities that the selected course has for its treatment, and finally it proposes a scheme of formative assessment to allow both professor and student to the account of the progress and achievements of the student.