“Contrabando y traición” ("Contraband and Betrayal") is the name of a Mexican song, also called "Camelia, la tejana,” whose lyrics were written by Ángel González in 1972.
[2] According to its author, Ángel González, the story of the song is fictional although it does incorporate the real names of people involved in drug trafficking.
[3] The story follows a drug trafficking romantic couple - Emilio Varela and Camelia la Texana – who transport several kilos of marijuana hidden in their car's tires from Tijuana, Mexico to Los Angeles, United States.
Pérez-Reverte declared that he had written the story of Camelia la Tejana having different adventures —and with the different name of Teresa Mendoza—, but with the same rebellious and disappointed spirit.
The Mexican composer Gabriela Ortiz used the story of Camelia and Emilio to make an opera with the title of Únicamente la verdad.