Section 28:1-103 - Construction of subtitle to promote its purposes and policies; applicability of supplemental principles of law(a) This subtitle must be liberally construed and applied to promote its underlying purposes and policies, which are: (1) To simplify, clarify, and modernize the law governing commercial transactions;(2) To permit the continued expansion of commercial practices through custom, usage, and agreement of the parties; and(3) To make uniform the law among the various jurisdictions.(b) Unless displaced by the particular provisions of this subtitle, the principles of law and equity, including the law merchant and the law relative to capacity to contract, principal and agent, estoppel, fraud, misrepresentation, duress, coercion, mistake, bankruptcy, and other validating or invalidating cause, supplement its provisions.Dec. 30, 1963, 77 Stat. 631, Pub. L. 88-243, § 1; July 22, 1976, D.C. Law 1-75, § 6, 23 DCR 1183; Apr. 27, 2013, D.C. Law 19-299, § 2, 60 DCR 2634.