THE UNCERTAINTY OF THE DISASTER AS THEORETICAL BASIS OF THE EXTENTION OF THE INSTITUTE’S INNOCENT OF HARM Klyachin Vyacheslav Matveevich, PhD in engineering. <...> E-mail: Klyachinv@mail.ru Annotation: The article is devoted to consideration of the provisions of the uncertainty of the disaster as the theoretical Foundation of the third form is innocent of harm. <...> Disclosed is the thesis that if a person who committed a socially dangerous act and the circumstances of the case caught in the uncertainty of the disaster, could not understand and anticipate the social danger of his actions (inaction), and equally to prevent their effects in virtue of the impossibility of objective assessment of the events, then his deeds should be recognized innocent. <...>