Benefits of saliva testing are very specific. It is that it is among the easiest and least intrusive methods of testing; it is the least expensive, it takes virtually no time at all to see the results after a sample has been properly collected. Coupled with the ability to re-test at virtually no increased cost, it has and will remain popular with a broad assortment of people who are in need of the specific benefits provided. If the instructions are carefully read and followed, it is among the easiest methods of testing as far as human error is concerned; it requires no special training and only minimal caution is required when handling a sample. To those considering the implementation of drug testing for a child or a spouse or colleague, this is often the prime candidate of testing.