Yes, I've eaten it made from (unsmoked) beef fillet, the dressing sort of 'cooks' it... and if he wanted to do venison like that then I have no problem with it, other than that personally I would want to know the provenance of the venison.
I guess that banging (very cold) venison in the cold smoker for a couple of hours is probably safe? But do you think that this will give a smoky taste to the product?
What would you do Dave, short of telling him to *** off? Cure overnight with a 'safe cure' then smoke? Just stuff it in raw for 12 hours or so, tell him the possible consequences and let him get on with it?
I'm at a loss what to do.
added 20:41
What I initially suggested to him was to cure it (like braseola/lonzino/lomo), dry for a couple of days, smoke it, then finish air drying it as a smoked venison braesola sort of thing, but he seems to particularly want it to retain a raw meat (ish) texture.