Lawrence Kohlberg sought to refine and extend the ideas of Piaget about the theory of moral development by creating a comprehensive three-stage theory. He identified three general levels of moral reasoning: pre-conventional, conventional, and post-conventional, and described two stages at each level:Pre conventional level:Stage-1 Punishment-obedience orientation.Stage-2 Instrumental-exchange orientation. Conventional level:Stage:3 Good-boy-nice-girl orientationStage-4 Law and order orientation.Postconventional Level:Stage-5 Social-contract situationStage-6 Universal-ethical-principles orientation. Kohlberg studied moral development by posing moral dilemmas to groups of children as well as adolescents and adults. These dilemmas take the form of stories, one of Kohlbergs best-known dilemmas involves a man named Heinz, who must choose between stealing medicine and letting his wife die.Stage-4 Law and order orientation: There is an orientation towards authority, fixed rules, and maintenance of social order. Right behavior consists of doing one's duty, showing respect for established or lawful authority, and maintaining given social order for its own sake.So the given statement in the question is followed by stage 4 of Kohlberg's moral development theory by which Heinz should obey the law as it is his duty as a citizen and if no one is allowed to steal even Heinz should not be allowed.?Important Points Other stages of Kohlberg's moral development theory:Stage-I: The Punishment and Obedience Orientation: The physical consequences of an action determine whether the action is good or bad regardless of the human value or the meaning of these consequences. Avoidance of punishment and deference to power are valued in their own right, not in terms of respect for the underlying moral order.Stage-2: Instrumental Relativist Orientation: Right action consists of that which instrumentally satisfies one's own needs and occasionally the needs of others. Stage 3: Good boy - Nice Girl Orientation: Good behavior is that which pleases or helps others and is approved by them. Behavior at this stage is frequently judged by intentions - "he means well", becomes important for the first time. One earns approval by being good to others.Stage 5: The Social Contract, Legalistic Orientation: in terms of general individual rights and standards that have been critically examined and agreed upon by the whole society. Apart from what is constitutional and democratically agreed upon the right is a matter of personal values. The result is based upon a legal point of view but with a Right to Education emphasis upon the possibility of changing the law in terms of consideration of social utility Stage 6: The Universal Ethical Principle Orientation: Right is defined by the decision of the conscience in accordance with self-chosen ethical principles appealing to logical comprehensiveness, universality, and consistency. These are universal principles of justice, reciprocity, quality of human rights, and respect for the dignity of human beings as individual persons.