Contact our firm at (858) 360-7080 to find out how our San Diego unfair competition lawyers can assist. Cases We Handle San Diego Business Litigation Attorney.From trade secret misappropriation to false advertising, many practices can create unfair competition. The San Diego Law Library is a State Bar of California licensed MCLE provider. Section 17200, also known as California's Unfair Competition Law ("UCL") prohibits any unlawful, unfair or fraudulent business act or practice. In California, the Unfair Competition Law (UCL) stands as a powerful legal tool designed to combat unfair business practices and ensure a level playing field. We have handled over 1,500 unfair competition, trade secrets, and restrictive covenant cases for more than 1,000 clients. Carlton Varner and Thomas Nevins are both partners in the Antitrust and Trade Regulation. California court may enjoin a defendant's business practice. California has an unfair competition law that prohibits unfair, deceptive, or fraudulent business practices or misleading advertising.