Stee - you are totally right in what you are saying. While I don't know that much about the benzo situation other than what Stee has already posted, on thing I do know a lot about of anabolic steroids and related bodybuilding drugs as I've been bodybuilding for nearly 20 years and have taken them on and off since 1995.
In the 1990s steroids were prescription meds in the UK but OTC in France, Spain, Holland, Greece and just about everywhere on the continent. As a result, genuine pharmaceutical steroids were cheap and plentyful. You only rarely saw UK brands (they must have been diverted or something) due to the law but stuff from all over the globe was common.
In 1996 the changed the law so that roids were illegal to sell but legal to possess and import a quantity for personal use. This made no difference at all in the supply though.
It wasn't until about 10 years ago that the laws in Europe changed and the free flow of European gear dried up completely. There was still middle eastern stuff but after 9/11 that became more rare as well. The gap in the market has been almost exclusively filled with what are known as "underground lab" operations. Basically they import a few kgs of raw testosterone powder (or nandrolone/trnbolone or whatever) from China (who will produce and sell just about anything) and make their own vials by dissolving the stuff in oil and PG and knocking it out. The quality and sterility was pretty sketchy at first (bear in mind steroids are injected IM so bacteria is a BIG problem) but nowadays people know which labs to trust and some labs are like small pharmaceutical companies as oppose to some guy in his kitchen.
I know you may think what does this have to do with anything but it's just anopther side of how people get round legal changes and if there is a market, they will supply it.
Incidentally the etiz blisters were made buy Infar (India) weren't they? (sorry if this is "sourcing" but I don't see how it is).
It's just that Infar make steroids as well and it was generally thought that while they are a pharmaceutical company of sorts they are lacking in several important licenses and their products are not to be trusted. I suppose people who bought the etiz had no complaints but their steroids were very hit and miss.
Sorry for the long post folks (and it's irrelevance

)