Is Scripture the origin of the Halakhah?

"The Halakhah constitutes a coherent construction comprised by category-formations defined by topics purposively amplified. These category-formations everywhere pursue a cogent analytical program, addressing diverse subjects, treated systematically, a single set of questions of definition and analysis. Is Scripture the origin of the Halakhic system, which defines the norms of Judaism? At stake is not the starting point of discrete bits of legal data. At issue is the origin of the comprehensive structure comprised by the Halakhic category-formations, by these topics and no others."--BOOK JACKET.