The most important goal that security men are looking for is to limit crimes and being avoid happened through arresting criminals and get them in prison. criminals and being punished them severely without oppressing their freedom and personal rights. So, the law is written in several ways to attains its proof. The most serious one is the confess which is considered the first evidence, but it is not necessary to get in deep when you judge something even the whole judicial recognitions are found. Because some of these motives are untrue or they might be escaped from another crime to save the real doer from being punished to gain some material and moral benefits or for another reasons. The criminal judge must be assured from the evidence definitely and its conditions comparing with physical and spiritual one, then you can judge and give the sentence according to his emotional conviction. The confess is one of the objective issues that the court is completely responsible for estimating and getting its judgment and person who is accused must be able to be have freely and according to that " the speech of the accused upon another one is not considered as a confess " but as a witness.