Although it is only a misdemeanor it is still illegal and it can ruin the life of a teenager. This will hurt your chances of getting a job in the future. It is against the rules to do anything that has to do with marijuana in school, or anywhere. A teenager who gets caught will definitely pay the consequences. With marijuana being illegal, if a teenager decides to use it he will have to take full responsibility.
Marijuana can disrupt the senses and it is easy to see if a person is under the influence of it.
When early effects fade, over a few hours the user can become very sleepy. With these easy to spot characteristics it is easy to see if a teenager is under the influences of marijuana. Furthermore, the traces of THC in marijuana can be detected in standard urine testing methods several days after smoking. In a heavy user, however, traces can be detected weeks after smoking. Since it is easy to tell and to test whether someone has been using marijuana, officials can quickly tell if a teenager has been using marijuana.