Commonly abbreviated to SP, this is a Scientology term for a person, usually an ex-Scientologist, who publicly opposes the Church of Scientology or in other ways irritates the hierarchy.

Once a person has been declared SP by the Co$, Scientologists are no longer allowed to speak to or associate with that person, even if s/he is (or rather was) a friend or family member. This is known as disconnection.

Many ex-Scientologists and critics of Scientology regard an SP Declaration as a recognition of their efforts to reform the church.