Thanks platypus and Kryzco. I think the best/most simple way to find out is by using your senses. Sight- Check out the bud. Use a microscope. Sound- Hot knife it and listen for any unnatural sizzling. Smell- Does it smell chemically? or unnatural in anyway. Touch- Does it feel moist and wet? Taste- Pop a lil bud in yo mouth and examine the taste. Smoke- Smoke dat shit. Also, just by asking around, background checking your hookup is always a good thing. And make your dealer smoke dat shit. I know lacing weed is very uncommon but I've also heard that dealers add shit to the buds if they had problems growing and they came out rather weak. Thanks guys. Anybody else have some input?