First of all, recording to some statistics there is over 53% convicts their cases has been closed without sufficient evidence, but after the DNA technology over 75% of them has been solved. In details, detectives were able to identify murderer by analyzing the DNA that was found in the crime scene. In anther cases, some of the suspect has proven innocent after he was arrested and threw in jail for several years.
This kind of databank can usefully assist scientists to discover the mysterious history. For example, the Tutankhamen’s DNA study showed that the king had a problem with his left foot. In addition, the study confirmed he had malaria but he did not die because of it. Furthermore, that whole studies have not gratified scientists’ curiosity so they continued their studies about Tutankhamen’s DNA analyzing. Eventually, they found that the King’s father had married his own sister. Moreover, they discovered that the King had married his half sister. Finally, DNA database would save time and effort for detectives and scientists solving crimes and acknowledge more information about