The binding principles established are: (1) A legal duty to prevent harm through positive action (omission cases) is determined by reasonableness, assessed with reference to all circumstances and the legal perceptions of the community as assessed by the court, involving policy decisions and value judgments. (2) For a legal duty to arise from an omission, there must be a special relationship between the person allegedly owing the duty and the claimant that distinguishes the claimant from other members of the general public who might be at risk. (3) The mere fact that a person belongs to a class of potential victims (e.g., women at risk from a rapist) is insufficient to establish the special relationship required for imposing a legal duty, regardless of the size of that class. (4) Complaints or requests made to prosecutors to re-arrest an accused are, by themselves, insufficient to establish the requisite special relationship. (5) At the close of a plaintiff's case, absolution from the instance is appropriate where there is insufficient evidence upon which the court could reasonably conclude that the legal duty contended for existed; the inference relied upon must be reasonable (not necessarily the only reasonable inference), and the test is what the trial court's own judgment is.