With states legalizing the use of marijuana, for both medical and recreational uses. Many states have been looking for a device that can quickly and precisely find the amount of THC a driver has in their system. One such proposes a device that has shown promise is a carbon nanotube breathalyzer generated breath that has been showing promising results. Much like the tests for alcohol, the hope is that scientist will be able to create new method that will be able to be implemented by police in tandem with alcohol breathalyzers. Once a device is made and regulated, tests could then be done to find how much THC can be in one’s system and still be able to drive. A device like this would be able to increase the safety on roads because officers would be able to charge more drivers with DUI.