In a democratic society, decision-making processes frequently involve
adversary proceedings, in which supporters of opposing views are given
an opportunity to influence the eventual decision in their favour. Th
ere are two phases to this decision-making process: the first, devoted
to exploring the reasons respectively favouring one or another of two
or more adversary positions, followed by a second phase seeking a con
sensus or, at least, a majority opinion on what the decision should be
. This article discusses the potential of Delphi inquiries as a group
decision-making aid in situations of this kind.