The Deceptive Trade Practices Act. The Texas Deceptive Trade Practices Act (DTPA) will protect a buyer from the misrepresentation of an independent inspector.The Texas Deceptive Trade Practices Act (DTPA) is a consumer protection statute in Texas aimed at protecting consumers from deceptive business practices. The trial court granted summary judgment in favor of Mack Trucks. The primary purpose of the DTPA is to protect consumers against false, misleading, and deceptive business and insurance practices, unconscionable actions, and. Although the case involved a statutory cause of action under the Texas Deceptive Trade Practices Act, Tex.Bus. Texas sued Mack for deceptive trade practices in 1978. This subchapter may be cited as the Deceptive Trade Practices-Consumer Protection Act. Dallas Market Center is the most complete wholesale trade resource in the world.