Factual error: Any time FBI agents enter Mexico, they are always armed. Mexican law prohibits U.S. Agents from bringing weapons into Mexico.
Factual error: Lisbon is sending Van Pelt to El Oro State Forest. Van Pelt says, "El Oro State Forest, that's east of Lake Tahoe, right?" Lisbon says, "Yeah." East of Lake Tahoe is Nevada, not California. (00:01:17)
Factual error: The container for the dangerous biological material is marked "Biohazard Level 5." There is no level 5. According to CDC regulations Biohazardous materials are rated 1 through 4. Based on the description of the material in the episode, it would be required to be stored in a laboratory rated at Biosafety Level (BSL) 4. All BSL 4 labs require personnel to wear a fully enclosed, pressurized suit when inside the lab. (00:01:05)
Factual error: When Jane is changing the tire on his Citroen DS 20 he uses a car-jack, but because of that car's hydropneumatic suspension you don't need one. (00:00:19)
Suggested correction: Good one! The DS 20 is a fantastic car and you CAN use the high-lift suspension to lift the car up to change the tire, but you still need the jack stand - supplied in the Citroen kit - to keep the tires off the ground for changing. Most DS owners find it much easier to just use a regular jack.
Factual error: From the middle of season 6 onwards, the show's setting moves from California to Texas. However, throughout season 7, there are many shots with mountains in the background, especially when the characters are in Austin or Dallas. There are no major mountain ranges anywhere near these cities. In fact, there are no major ranges in Texas east of the Pecos River, which is hundreds of miles away from where the characters are situated.
