US Supreme Court considers case on drug trafficking expert testimony in drug mule conviction of Delilah Guadalupe Diaz.

The US Supreme Court is considering a case involving a California woman, Delilah Guadalupe Diaz, who was convicted for smuggling drugs across the US-Mexico border. Diaz claims she acted unwittingly as a "blind" drug mule, but the lower court refused to exclude expert witness testimony casting doubt on her defense. The case challenges the scope of law enforcement expert testimony in drug trafficking cases. Diaz was found guilty of illegally importing methamphetamine and sentenced to seven years in prison.