Awesome update. It proved she was clean and I think it showed that you trusted your granddaughter. Be sure to praise her and let her know, you are really proud of her.
Good for her, being willing to take the test to shut them all up..
I answered yesterday that Hemp is sold at Michaels.
Now that you say she does not smoke pot and you are positive, then let them test her for drugs! You have nothing to worry about if she really doesn't do any illegal drugs. I think instead it will be a good way to show the school she is clean..
IF you allow it and she does test positive, I think that could also be good, because at least you will know what is going on and then you will be able to deal with it.
There are always parents that swear their children do not drink or do drugs, until they find out the hard way. When the child is caught. .
I once asked my daughter if the "school asked her to take a random drug test would she do it?" She answered "sure, but they would be wasting their money because it would come up negative.". I asked because the district was considering random drug testing of the kids that participate in school sports. I wondered how she would feel about it..
Do not be afraid to find and prove the truth. Then they will know to leave her alone..