The California Highway Patrol seized more than 50 pounds of "liquid meth" on I-5 in Coalinga on Monday.
A man identified as 20-year-old Rene Diaz was handcuffed and taken into the back of a patrol car. CHP says his accomplice was 38-year-old Veronica Carrasco, who was also arrested.
Investigators say the two worked together to transport 56 pounds of liquid methamphetamine hidden in tequila bottles. They estimate the value of the seized methamphetamine at more than $500,000.