This is a quote from the book "The Gentleperson's Guide To Forum Spies" by Cryptome.org
... is impossible for the opponent to come by (it may exist, but not be at his disposal, or it may be something which is known to be safely destroyed or withheld, such as a murder weapon.) In order
to completely avoid discussing issues, it may be required that you to categorically deny and be critical of media or books as valid sources, deny that witnesses are acceptable, or even deny tha
t statements made by government or other authorities have any meaning or relevance.
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20. False evidence. Whenever possible, introduce new facts or clues designed and manufactured to ...