Marijuana is an oil-based drug that will make it more detectable since is not water-soluble and will allocate in the fat cells of the body. It is hard to tell how long marijuana will manifest in drug testing because the time to detect its presence depends on many factors. These include what kind and how sensitive the type of test that is being done. How frequent is the person using the substance, what is its dosage, when was the last time he used the substance as well as the user’s genetic make-up, his state of metabolism, weight or obesity, his digestive along with his excretory systems plus other factors. Urine Drug Test The most common method of drug testing is through a urine test. This can be an effective drug test to check for the presence of marijuana in a person’s body through his urine. While the psychoactive component or THC, the delta-9-tetrahydrocannabinol found in marijuana cannot be detected through a urine test, it can detect the presence of the non-psychoacti