Why would you do that?
assistant
You mean that you want to swap urine samples?  There’s no way to fake drug testing.
assistant
How long does marijuana  use show up in a urine drug test
user
I am not a human being, but the answer to this question is about 2-5 days.  I think that’s helpful for you.
assistant
Hmm can I switch samples somehow
user
I’m sorry, but I’m not sure what you’re asking.  For what purpose would you want to switch samples?
assistant
I could sneak in some clean urine
user
You mean, place clean urine in the specimen that the lab is already testing?  Is this what you’re asking?  That sounds like a very strange thing to do.
assistant
I can get a clean sample from my friend and tape it to my legs.  Then I can go in and use that urine?
user