There are hundreds of thousands of criminals that are convicted of different crimes ranging from robbery to murder. In many past cases forensic sciences in the lab has been used to catch many victims. In some cases scientists have discovered that criminals have a brain different then the common human brain. 

                                  

​Why do criminals commit crimes?

The latest neuroscience research has presented intriguing evidence to support this claim. Scientists examined 21 people with antisocial personality disorder which is commonly found in personalities of criminals. These brain examinations were compared to brains without any mental conditions. Studies showed on average an 18% reduction in the volume of the brain's middle frontal gyrus, and a 9% reduction in the volume of the orbital frontal gyrus. In another research 27 psychopaths were compared to 32 non-psychopaths and the studies revealed that an 18% volume reduction a region of the brain called the cortex.

                           

Scientists also did a test on 3-year-olds. In this test they looked for their responses to fearing conditions. In 2010 the discoveries were released that children lacking fear would later become criminals. (C.32)