From what or who does Detective Pardew derive his inspiration in the novel, Gerald’s Party?

Despite Pardew's insistence that all crime is a cause and effect process and that detection is a rational process, he contradicts this in his confession to Gerald's mother-in-law. He had admitted to Gerald that his science is a "discipline" to prepare him as a "vessel for intuition," and he later confides that his great inspirations come as a result of his visions of a woman named Truth, whom he has fallen in love with and whom he saw incarnate in Ros — all of which may explain the zeal with which the inspector examines the body.