The Scientology Free Zone or Freezone practises Scientology and Dianetics without high costs. Free Zone is a term used by several small groups which do Scientology Pseudoscience but are not part of the official Church of Scientology. Most of them are former Church of Scientology members who either left or were kicked out in the "church"'s frequent internal purges, especially since the early 1980s. The Church of Scientology's practice of declaring members "SP" on a whim (suppressive persons, referring to somebody declared persona non grata in the organization and effectively making them non-members) led to the inevitable as many of these people continued to believe in and practice the pseudoscience of Scientology.