People certainly do
underhandedly lace weed.
It does happen, and not always when the buyer is expecting it or looking for it.
When you've seen just how crappy and low-grade some imports can be, it's easy to understand why lacing herb can be a financially savvy route for certain underhanded businessmen.
Most folks making smaller purchases expect to see the product before they buy it, or sample it, even. But that's often not the case when buying in bulk, to the tune of a couple hundred (or more than a few thousand
For instance, a dealer drops a huge
load of cash on a product that, ultimately, he simply can not sell, as-is.
He breaks through the first few feet, and finds the core of each bale is vastly inferior to the outside, and even the outside may not be so good. Many people use solvents to extract glandular material, then re-dry the cannabis before selling, even and especially on a large scale.
This can render bud virtually impotent, even if it still looks
pretty decent and intact. The trichome stalks and cuticles (heads) are often still present... just virtually emptied.
When a buyer is in that situation, right now, as it is, it's either a 100% loss or a huge amount of effort and time to extract what little hash there is, when he may or may not even be able to move it in his market.
Keep in mind, that when you get down to it, cannabis is a considerably tame drug and people are really not expecting THAT much from it and many of those who consistently smoke low-grade often don't even know what to expect, so it doesn't take much of certain hard, plant-based, sometimes legal and synthetic substances, to provide a pretty intense sensation.
Wetted, laced, and re-dried, for a very small cost
, a dealer who makes an extraordinarily bad buy can at least make something
back without losing the next connection, who may be expecting this next haul in a timely manner.
When larger amounts change hands, and it goes between dealers who use very little, or none of the cannabis themselves, it's very easy and at dealer-rates it's surprisingly cost effective
to lace inferior product.
These days, hard drugs are often cheaper
than cannabis anyhow, and you only need a tiny amount of these less-expensive substances to cause something like the level of effect, that a cannabis user would expect (albeit an odd, and suspicious
I've seen it happen with my own eyes with a huge quantity, they were quite experienced when it came to doing it, and they acted as though it was business as usual and fairly common in their line of work, not just among themselves, but among many of their competitors, and it was the first, and the last time I ever associated with these fellows (I've never been into anything 'big' trade-wise of course, only in the legitimate medical community, my time with them was purely social). It reminded me why I haven't bought a street-bag in well over a decade
TL;DR - Thousands
of pounds are laced each year, this is why they need to just end the prohibition of our canna in such a way that we can all grow our own, or buy locally, without risking harm or threat from both 'authority figures' and unscrupulous salesmen.