When the character Jillian Carter is supposed to be a native born Texan average PTA mom she has this very fake southernish accent. When Rossi and JJ convince her she has been made as a member of this drug and she is now some part of a sophisticated "dark web" drug ring she loses that fake accent.
When Hotchner goes to see DEA Agent Mitchell after Deputy Director Graff's death, the neon sign outside the office reads "Drug Enforcement Agency" instead of "Drug Enforcement Administration".
At about the 36 minute mark Morgan gets in the SUV and makes a fast U turn on a dirt road and you hear squealing of tires like he's peeling out. Tires don't squeal on a dirt road.
The Ciudad Juarez detective died in Mexico City, according to his death certificate. However, this death certificate was made in the State of Jalisco, where neither Ciudad Juarez nor Mexico City are. "Mexico City" is also written in English instead of Spanish (Ciudad de México).