The drug Tian manufactured is a synthetic substance significantly stronger than marijuana that is applied to a smokable plant material.
The drug is transported from China in powdered form, in packages labeled fertilizer or industrial solvents.
Links
[1] http://www.bignewsnetwork.com/index.php/sid/233311325
[2] http://www.rethinkpot.org/tags/spice
[3] http://www.rethinkpot.org/tags/dea