Principle of Presumption of Innocence in the View of Evidence Law

Presumption of innocence is a deduction for the prosecuted based on the normal social conditions that he is innocent from the birth and he contains no criminal genes.So principle of presumption of innocence plays a great role in evidence law.And certainly it leads out the specific rules: evidence judgment creed,illegal evidence materials exclusion rule,the prosecuting shoulders proving liabilities,and dubious crime is innocent.