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After a couple hours of reading here, I have not found anyone else in this forum talk about this. I just received a job offer and accepted. I was told that I would be receiving some info and "a drug test" in the mail next week. I was prepared for subsitution at a lab, but this throws me for a loop.

What kind of test can they send me in the mail, and more importantly, that I can send to somewhere? I am really getting worried that it may be hair instead of urine, but it would be really easy for me to subsitute someone else's hair, you know?

Bottom line question: Has anyone received a pre-employment drug test through the mail? What kind was it? Hair? Blood? Urine?

I really appreciate any info because I had a decent plan going and now it's shot. It may be the easiest substitution ever, or I'm totally screwed.