The article starts with the existing definition of the “scientific method” as a logical and rational order of steps through which scientists reach conclusions about the world around us. The answer to the question “What is truth and evidence in science?” requires attention to be paid to several important key markings indicated in this regard. The purpose of this article is to reveal the essence of all the “tests of the special theory of relativity” presenting the most common objectionable techniques used in the “fundamental tests” of special relativity, which have been considered within three major types. The first one is based on “logical circular reference”, the second type is based on inadmissible analogy, and the third type are completely contrived (fabricated) tests - here is analyzed as a typical example of the Hafele-Keating experiment As a conclusion, the reader will uncover that the given explanations by the modern physics of the results of all these tests do not meet the requirement: the science to give a real factual explanation about the world. KEY WORDS: fundamental tests; special theory of relativity; speed of light postulate; Michelson-Morley experiment; speed of light invariance.