A drug test is commonly a technical examination of urine, blood, semen, sweat, or oral fluid samples to determine the presence or absence of specified drugs or their metabolizedd traces.
Drug test occurs in different forms or the so called drug testing method. Saliva Drug Testing is the next, a non-invasive method which allows easy collection of specimen. Spray (sweat) drug testing is the third, considered as a non-invasive method, like saliva drug testing, this method does not require bathroom to take the specimen. This drug test is relatively tamper proof since they are hard to manipulate. Hair drug test or testing is the last method which provides a much longer window of detection, useful for highly safety-critical positions.
