They are private writings addressed solely to spiritually advanced parishioners by the founder of a religion. This belief is as fundamental to the Scientology religion as the belief in Resurrection is to Protestants, as a literal interpretation of the Bible is to Fundamentalist Christianity, as strict adherence to dietary laws is to certain Jewish sects or as a belief in the absolute sanctity of life is to devout Catholics. The materials are stolen and have been used for improper purposes. A handful of lawless apostates who try to harm the Scientology religion have attempted, through unauthorized and illegal means, to dictate to Scientologists how to practice their religion. These people would never be given access to these materials by the Church, because they are spiritually unprepared and ethically unworthy.
Court rulings protect the materials.
Trade secret and copyright law, as the courts have found, protect these materials. These laws are the secular vehicle for safeguarding the rights of the Church and its parishioners to practice their religion as set forth by its founder. Those intent on destroying the religion have no right to dictate to its parishioners how it should be practiced. To allow these haters to take control of the Church's scriptures out of the hands of the Church and its members would be analagous to giving control of Jewish dogma to a pack of Nazis who have publicly stated their intent to destroy the religion. Illegal dissemination of the materials would cause financial harm to the Church.