Abstract
the development Led of science in the fields of science to a new technique known as discovery (brain imprint) which can be determined from which the extent of knowledge of the suspect to the crime, enabling investigators to identify the perpetrators of crimes and works of this new technology to measure and analyze the nature of the electrical activity of the brain at a time less than a second when confronting the owner something aware of it, and if what was presented to the deadly material body of the crime committed and the site does not know one else registers the brain immediately know the way involuntary recorded this technique replies brain acts by electrodes connected to the head to monitor brain activity in the form of electric waves, and the person who was not at the crime scene will not be recorded this technique on the brain of any reactions.