Predicting, anticipating and presenting to decision-makers the elements that will enable them to make a satisfactory decision: this is how to go about working in an intelligent manner; it is to work with intelligence in the field of public policies, to implement political intelligence. Like researchers working in the field of economic intelligence, researchers in legal sociology and political sciences should focus on collecting human resources and the technological means used in developing their fields. Intelligence in the field of public policies should be processed using the same methods as economic intelligence or political intelligence, but without necessarily being oriented towards such results. It's a question of ethics in politics. According to the principle of 'one best way', the traditional process for creating law, calculating what the best possible decision of behaviour will be in each situation, is sufficient for achieving a 'good' decision.