The Brief The Texas Attorney General’s Office has launched an investigation into a dog selling business. Lone Star Pups, based in Caldwell, Texas, specializes in doodle and designer dog breeds, according to officials. A Texas puppy-selling business is under investigation by the Texas Attorney General’s Office. According to the AG’s office, the investigation centers around possible misleading claims about the origin and veterinary care of the puppies being sold. The AG’s office said it also has questions about the fine print in a 10-year health guarantee that Lone Star Pups markets.