Since marijuana is now legal in several places, cops have been forced to come up with ways to tell if you are driving under the influence. They have been forced to come up with some interesting methods to determine this since there no straightforward tests to determine if someone is driving under the influence. It is an offense to have marijuana in your car or system if it has not been legalized in your location yet. Cops are working on finding ways to determine if the drivers that are pulled over are driving under the influence of marijuana. If you want to know what an officer will do if they suspect you are under the influence, you can learn more about it by reading more here.
The first option they can use is the breathalyzer. as of yet, there are no breathalyzer tests that can determine if someone is under the influence. This is do0wn to the fact that your impairment does not correlate in any way with the amount of marijuana in your system. Unlike alcohol, the level of impairment caused by THC cannot be measured using a simple drug test. Reports claim that a doctor in California has invented a marijuana breathalyzer to be used on people suspected of being under the influence. There is no information on whether it will be used in future although it is not under use currently. If a police officer has suspicions that you could be under the influence, they may have you take a breathalyzer test, but it will most probably be for alcohol.
A urine test is another option that they could use. In some areas, you automatically consent to a urine test if the officer on duty suspects that you could be under the influence. They may ask you to provide a urine sample if an officer believes that you are driving under the influence. This too has its disadvantages. This because THC can stay in your body for up to a few days after smoking. If an officer fails to prove that you were high or you failed a field taste, this may not be enough to incriminate you.
An officer can see if you have THC in your system by using a mouth swab. The lack of accuracy in this method means that it is completely comparable to the others. This poses a challenge since officers cannot use them to prove that you are high. If a police officer has no other source of proof, it is almost impossible to charge you for driving under the influence.