Can I murder my friends to death with poison?

I've got poison bombs equipped as my lethal bomb type, but I'm a little wary using them around my allies, for fear that perhaps the poison would effect them as well.

It seems like my fellow assassins might be immune (seeing as I can generally throw one point blank and not be effected by it), but I'm not 100% sure. My survivability and theirs is sometimes inconsistent.

What about normal NPC companions, such as people I'm supposed to escort? Will they die if I throw poison at them? Not directly, mind you, that would be murder. I mean if they happen to be within the radius of my poisonous explosive device that was clearly thrown at a nearby hostile. Clearly.

Solution 1:

Allied NPC's are completely immune to any attacks you can deal, that includes poisoning. When I say "allied," that includes hired groups, your assassin disciples and other NPC's that follows you around (or you follow).

Otherwise all other NPC's that you can kill with your blade or other weapons are potential targets for poisoning. Beware as that includes civilians and if you kill too many, you will desynchronize.