1. There is no THC in salvia, a different plant, differnet speices, different effects. I found this:

"Salvinorin A, also called Divinorin A, is believed to be the ingredient responsible for the psychoactive effects of S. divinorum. Chemically it is a neoclerodane diterpene found in the leaves, and to a lesser extent in the stems. Other substances have been isolated from the plant, but with the possible exception of Salvinorin C, none have been shown to be psychoactive."

I found that here:
http://www.deadiversion.usdoj.gov/dr...d/salvia_d.htm

2. Salvia is not an illegal substance in some places, so it is not considered a drug. You will not get in trouble having it in your system