A Poi-Savant is an Imperial hand-held cogitation device that measures various levels of bio-chemicals and searches for signs of a diverse number of dangerous toxins in any substance that it is used to analyse. Any substance the Poi-Savant clears as “edible” is safe for human consumption, though not necessarily appetizing. Poi-Savants are most commonly used by those who spend extended periods of time in xenos environments where, sooner or later, one will have to sample the “local” cuisine, which may not resemble anything one is used to. Indeed, some travellers try to opt for a plant or creature that has a “familiar” appearance, but this is no less dangerous—for the assumption that a given thing must be safe to eat based on resemblance is a foolhardy one.