Unfair Deceptive Untrue and Misleading Advertising fall under California's Unfair Competition laws - learn more, proven lawyers 858-535-1511. A classic deceptive practice is the."Going Out of Business" sale. From trade secret misappropriation to false advertising, many practices can create unfair competition. Complete the CONSUMER COMPLAINT FORM. Facing an unfair competition case in California? Hoge Law Firm can help victims of consumer fraud as well as businesses facing unfounded claims of deceptive practices. Yes, there are laws that forbid companies from misleading consumers with deceptive product labels or false advertisements. As a general rule, claims in advertisements must be truthful and not misleading, express and implied claims must be substantiated before they are made. At R23 Law, our California False Advertising Consumer Lawyers are committed to holding businesses accountable for these misleading practices.