Scientologists believe that seventy-five million years ago, Xenu was the ruler of a Galactic Confederacy which consisted of 26 stars and 76 planets including Earth, which was then known as Teegeeack. The planets were overpopulated, each having an average population of 178 billion.^[1][2][3] The Galactic Confederacy's civilization was comparable to our own, with aliens "walking around in clothes which looked very remarkably like the clothes they wear this very minute" and using cars, trains and boats looking exactly the same as those "circa 1950, 1960" on Earth.^{[citation needed]}

Xenu was about to be deposed from power, so he devised a plot to eliminate the excess population from his dominions. With the assistance of psychiatrists, he summoned billions^[1] of his citizens together under the pretense of income tax inspections, then paralyzed them and froze them in a mixture of alcohol and glycol to capture their souls. The kidnapped populace was loaded into spacecraft for transport to the site of extermination, the planet of Teegeeack (Earth). The appearance of these spacecraft would later be subconsciously expressed in the design of the Douglas DC-8, the only difference being: "the DC8 had fans, propellers on it and the space plane didn't."^[7]. When they had reached Teegeeack/Earth, the paralyzed citizens were unloaded around the bases of volcanoes across the planet. Hydrogen bombs were then lowered into the volcanoes and detonated simultaneously. Only a few aliens' physical bodies survived.

The now-disembodied victims' souls, which Hubbard called thetans, were blown into the air by the blast. They were captured by Xenu's forces using an "electronic ribbon" ("which also was a type of standing wave") and sucked into "vacuum zones" around the world. The hundreds of billions^[8] of captured thetans were taken to a type of cinema, where they were forced to watch a "three-D, super colossal motion picture" for thirty-six days. This implanted what Hubbard termed "various misleading data"' (collectively termed the R6 implant) into the memories of the hapless thetans, "which has to do with God, the Devil, space opera, et cetera". This included all world religions, with Hubbard specifically attributing Roman Catholicism and the image of the Crucifixion to the influence of Xenu. The interior decoration of "all modern theaters" is also said by Hubbard to be due to an unconscious recollection of Xenu's implants. The two "implant stations" cited by Hubbard were said to have been located on Hawaii and Las Palmas in the Canary Islands.

In addition to implanting new beliefs in the thetans, the images deprived them of their sense of personal identity. When the thetans left the projection areas, they started to cluster together in groups of a few thousand, having lost the ability to differentiate between each other. Each cluster of thetans gathered into one of the few remaining bodies that survived the explosion. These became what are known as body thetans, which are said to be still clinging to and adversely affecting everyone except those Scientologists who have performed the necessary steps to remove them.

A government faction known as the Loyal Officers finally overthrew Xenu and his renegades, and locked him away in a mountain, where he was imprisoned forever by a force field powered by an eternal battery. Although the location of Xenu is sometimes said to be the Pyrenees on Earth, this is actually the location Hubbard gave elsewhere for an ancient "Martian report station."^[9] Teegeeack/Earth was subsequently abandoned by the Galactic Confederacy and remains a pariah "prison planet" to this day, although it has suffered repeatedly from incursions by alien "Invader Forces" since that time.

For years, the "Church of Scientology" has made every effort to silence it's critics.  Critics have been followed, stalked, threatened, and physically assaulted.  What kind of "church" would engage in such activity? 

In 1965 Hubbard formulated the "Fair Game Law", which states how to deal with people who interfere with Scientology's activities. These problematic people, called suppressive persons, could be considered "fair game" for retaliation:

Later in December of that year, Hubbard reissued the Fair Game policy with additional clarifications to define the scope of Fair Game. He made it clear that the policy applied to non-Scientologists as well. He declared:

The homes, property, places and abodes of persons who have been active in attempting to: suppress Scientology or Scientologists are all beyond any protection of Scientology Ethics, unless absolved by later Ethics or an amnesty ... this Policy Letter extends to suppressive non-Scientology wives and husbands and parents, or other family members or hostile groups or even close friends.^[5]

Hubbard made it clear elsewhere in his writings that the policy would be applied to external organizations, including governments, that were guilty of having interfered with Scientology's activities. This included the IRS, FDA, and other government entities.

The policy was further extended in an October 1967 Policy Letter (HCOPL 18 Oct 67 Issue IV, Penalties for Lower Conditions), where Hubbard defined the "penalties" for an individual deemed to be in a "Condition of Enemy":

ENEMY — SP Order. Fair game. May be deprived of property or injured by any means by any Scientologist without any discipline of the Scientologist. May be tricked, sued or lied to or destroyed.