Alternative dispute resolution (ADR) is a collective noun for all kinds of alternative methods to formal dispute resolution. Business ethics attempts to theorize the different forms of normative coordination of corporate acts that remain within the lifeworld and outside the formal sphere of the legal system. In this context, business ethics could offer a positive approach to ADR, as ADR would be an effective, practical form of casuistry ethics. In this manner, concrete conflicts of interest and disagreements between economic actors (...) could be resolved based on moral intentions and moral validity claims. This approach of ADR through business ethics is confirmed by many articles in business ethical journals. In two important aspects, namely justice and autonomy, law is contrary to ethics. ADR lacks exactly these ethical characteristics; thus the idea that ADR belongs to the discourse of business ethics is misleading. This article will argue that ADR is not in the realm of the ethical, but in the realm of the legal. This critical analysis of ADR will show a deeper dimension in the relationship between business ethics and law, namely the systematic colonization of ethical methods by law. (shrink)