In message , newsb
writes

And it makes me wonder. Are such things synthesised for use in legal
opiate drugs (eg., heroin, opium tinctures, morphine and codeine) -
apart from the obvious opiate like substitutes - or do companies buy the
raw ingredients from the Afghani poppy fields?

I've heard that opium poppy is grown commercially in Tasmania.

Google confirms.

http://www.poppies.org/news/99742218366555.shtml
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Stewart Robert Hinsley