Apothecary - Deathwatch Service: Many Apothecaries are known to perform the Long Watch with the Chamber Militant of the Ordo Xenos, better known as the Deathwatch. Deathwatch Apothecaries take on a number of additional duties over those performed in their parent Chapter.For a start, they must master the genetic inheritance not only of their own gene-seed, but of a myriad of other Chapters too, so that they might monitor and maintain the implants of all their fellow Space Marines, each of which may be drawn from a different Chapter.In this matter, Deathwatch Apothecaries occupy a uniquely trusted position. Space Marine Chapters do not lightly share the details of their gene-seed, with its associated traits, variations, and even mutations. Deathwatch Apothecaries are sworn to maintain the secrets of each of the Chapters from which their fellows are drawn, an oath that carries the harshest of penalties should it ever be broken.Aside from monitoring the state of the Space Marines' implanted organs and altered metabolisms, the Apothecaries must also be ever alert to the risk of alien contamination. Whilst undertaking their missions, Deathwatch Kill-teams are likely to come into contact not only with creatures of utterly alien biology, but with all the bacterial life that accompanies them.While the Space Marines are blessed with the very strongest of human immune systems, it is known that the spores of some alien life forms can cause mutation or death even in the Adeptus Astartes. There are some xenos that actually reproduce in this vile manner, their seed infecting the victim and slowly mutating him into the original life form. Such genetic blasphemy must be guarded against, and the Apothecaries administer an entire bank of metabolic and genetic tests on every member of a Kill-team before and after every mission.Another area in which the Deathwatch Apothecaries are highly involved is that of training. Deathwatch Kill-teams push their bodies to, and beyond, the limits of even their unique superhuman physiology, and the Apothecaries must monitor this process closely. But they are a part of the training too, for the Apothecaries often aid the Watch Captains in formulating the most arduous of training regimens.Using his unique knowledge of his charges, the Apothecary can induce various states in his battle-brothers, under which their skills and strengths will be tested all the further. Interfacing remotely with a battle-brother's armour systems, the Apothecary might disable a limb, limit blood oxygen levels or simulate the effects of any number of poisons, all in the cause of maintaining combat readiness.The greatest duty that a Deathwatch Apothecary must perform is to recover the gene-seed of a fallen battle-brother, so that it may be returned to his parent Chapter, and he may live on through the creation of future generations of Space Marines.This is a solemn enough task in a normal Chapter, but takes on an additional weight in the Deathwatch. No Chapter would agree to despatch its sons across the galaxy to fight at the behest of the Inquisition and other Chapters (some of whom may be ancient rivals), were it not for the certain knowledge that their gene-seed will be returned should they fall.It has been known for a Chapter to temporarily withhold its honour service to the Deathwatch if too many of its Space Marines serving with the Ordo Xenos have been killed and their precious gene-seed irretrievably lost. Thus, the survival of a Space Marine's parent Chapter and the reputation of the Deathwatch itself relies on the action of the Apothecaries.