"Taco fraud" is the use of a taco, in any form, to generate illegal revenue by violating trademarks, copy rights, health department licensing, and any other offense to avoid paying taxes required of restaurant industry businesses. This includes employing of illegals to sale the tacos.
Yes, I've seen a taco truck called "Taco Bell."
Thank you for clearing that up.
Up here they have illegal lobsters (oversize/undersize) but tacos are somewhat rare, and generally legit.