This. I do not believe it. Weed is rarely laced, and when it is, you know it is. It's been that way everywhere I've been, but I have not spent much time in England, more in India, Brazil, Guatamala, etc etc, and I live in the states. It's the same everywhere, lacing cannabis makes no sense unless you are doing it on purpose and charging more. I am sure people do shit like spray bud to make it wet,, so it weighs more and smells better (common), but I do not consider this lacing, I consider it scamming.
Anyway, we generally do not allow this kind of discussion because this is how it always goes: back and forth, expect usually someone is convinced they smoked laced bud.
Those kind of threads get closed ASAP, so lets not turn it into that.
/rant