Under the counter baccy.

The smell, a bit like roasted coffee and burnt toast “tobacco”.

HgO, natural mercuric oxide.  Calomel is typical name used.  The stuff of Mad Hatter fame.  It releases it’s oxygen, at temperatures just above room temperature.. it received mention to me in 1989s.

NHS started me smoking, when I tried reporting attempted murders in 1990s. Well, historic. 

Report to police, HM Customs, or MI5?  It’s more obvious than dealers think.  But, one smoke can sometimes kill? It’s all about chemistry.

Ex- MoD, sciences post-professional.  Heavily medicated, and heavily pissed off.

Don’t believe the spiele that it’s simply imported pipe tobacco.  Ken Clarke must’ve had shares in it, or jealous of people who could read and write????

Dave T. Of RAMC retired.