fake positives

[topgunner19]

saw a test go straight to black on marquis and mandelins looked fine after seeing many

after test driving there were no results

what could cause a false positive?

 

[severely etarded]

post a pic of the results? perhaps you should invest in a mecke kit also. personally never seen it on a marquis but I have seen pictures of it on here so I believe it's possible... are you taking medication that may interfere?

 

[Folley]

More than likely, it's MDMA that is just EXTREMELY weak. There are a few chemicals that can fool a test kit, but they are very rare and not really worth the hassle if you're just going to sell bunk shit anyway.