Can a drug test determine if it was a prescribe drug or illegal drug?

Answer:
There are test which will specify the type of drug one has taken. Some simply say the category of drug taken. If you are looking for a specific drug, a test can definitely be done
First answer by Lisbustos. Last edit by Lisbustos. Contributor trust: 3 [recommend contributor recommended]. Question popularity: 1 [recommend question].