Have Faith in Suspicion

Within the Imperium the balance between distrust for psykers and the absolute need to make use of them is rarely achieved. Sharp reactionary views are commonplace and are often vindicated. Space Marine Chapter beliefs are equally divided and even in the most moderate Chapters Librarians tend to stand apart from their battle brothers, viewed with fearful awe as well as respect.
May not use Librarians.
May not use any allies with Psychic powers.