Austin Police arrest man with $4 million worth of liquid meth in gas tank AUSTIN, Texas (KEYE) - The Austin Police Department arrested a man on Monday with millions of dollars in liquid methamphetamine hidden in his gas tank. According to police, Richard Martinez, 44, was arrested after a traffic stop. Martinez was behind the wheel of a 2001 gray Dodge Ram pickup truck with Iowa plates. Officers say they detected deception during the roadside interview and obtained written consent to search the truck. Police brought in a narcotics K-9 to conduct a sniff test, and the K-9 gave an alert on both sides of the truck near the gas tank. Officers confirmed the contents of the gas tank to be liquid methamphetamine, weighing in at 50 kilos with a street value of $4 million.