Currently the Church is headed by David Miscavige and keeps a headquarters, the Church of Scientology International, in Los Angeles, California.
It is infamous for it's controversial actions, some of which are:
•The Fair Game policy, a highly aggressive policy of the church which allows members to take whatever actions necessary to silence any and all critics(dubbed Suppressive Persons) of the church and its practices. This is commonly implemented utilizing the legal system to harass individuals into submission with barrages of frivolous lawsuits, false criminal charges, and any other means to demoralize the potential source of bad PR.
•Numerous deaths related to the Church and its practices;
Cases of suicidal depression, criminal neglect such as the case of Lisa McPherson, and countless mysterious deaths that point to the church have been recorded. A full list of Scientology related deaths can be seen at http://www.whyaretheydead.net/
•Disconnection, a type of religious shunning in which a scientologist is required to break all ties and communication with friends and family members that are possibly harmful to the PR of the church.
•The extreme opposition to psychiatry, sometimes to the point of denying members of gravely needed mental help.
~ Dianetics, see Dianetics - the Modern Science of Mental Health, a non-spiritual approach to mental improvement that does not include psych drugs, hypnosis, brainwashing, mental implants, shock treatments or any form of psych treatment;
~ an educational methoology, Study Technology, for easier, faster learning;
~ an organizational management technology for improving business performance, and
~ Scientology spiritual improvement technology for emotional and spiritual betterment in this life and beyond. Membership is open to anyone wishing to better conditions for themselves and others, and usually begins with introductory lectures and progresses through various levels of classes with everyday practical applications to reach a rational, clear-thinking, mental state called "Clear". Study beyond Clear results in a state of total spiritual freedom. Along the way one can expect an increase in personal abilities, including IQ, reaction time, getting more done in less time, and freedom from excessive self-doubt.
__Study of Scientology is based upon one's own personal discovery, rather than the belief of Scientology principles; no one is asked to believe any of its principles without discovering for themselves that these principles are true, and do produce improvements, self-growth, and better relationships. Scientologists take pride in having personal freedom, sharing information, and thinking for themselves. One finds none of the flags that mark a clique, cult, or secret society.
__Since Scientology technologies are improvement technologies rather than belief methodologies, one notices both members of other religions, and people holding to no belief structure or system, studying and using some or all of the technologies of Scientology, without expectation or necessity of having membership in Scientology. One also finds members of other religions claiming dual participation or membership in both Scientology and some other religion.