Information on IT can apply a wide range of 3D printing technology, almost all where reality exists in theory able to print. United States, Michigan when the police foiled murder for a deceased person, requires fingerprint to unlock his cell phone of the deceased, but the police did not force like the FBI cell phone manufacturers to crack the cell phone, but using 3D printing technology to restore the dead finger, so as to successfully unlock the phone.

It is reported that the police contact Anil Jain, a Professor of computer science at the University of Michigan, asked him for help using 3D printing technology "finger printing" unlock the victims cell phone in order to search for clues on murder. According to information provided by the police, the victim had a criminal record in prison, during which police collected fingerprint of his 10 fingers. Because the police do not know what is his cell phone fingerprint using one or several fingerprint information, the police tested print out all ten fingers.

However print finger because you cannot meet the requirements of capacitive fingerprint reader, also require introducing a layer of metal particles on the finger ridges of a finger touch electric circuit, and to produce a fingerprint image. This attempt by the police to crime forensics provides a whole new way of thinking in the new period and contribute to successful resolution of similar cases in the future.

IT资讯讯 3D打印技术可以应用的范围十分广泛，凡是现实中存在的东西理论上几乎都能打印。美国密歇根州警方在为一位死者破获谋杀案时，需要死者指纹解锁他的手机，然而这次警方并没有像FBI那样逼迫手机厂商破解手机，而是用3D打印技术还原了死者手指，从而成功解锁了手机。

据悉，警方接触了密歇根州立大学计算机科学教授Anil Jain，请他帮忙使用3D打印技术“打印手指”解锁受害人手机，以便搜寻谋杀案线索。根据警方提供的信息，这位受害人曾经因为有犯罪前科而入狱服刑，期间警方采集过他的10根手指的指纹。由于警方不知道他的手机指纹使用的是哪一根或几根指纹的信息，因此警方把十根手指全部打印出来进行试验。

然而打印的手指由于不能满足电容式指纹识别器的要求，还需要在手指上引入一层金属微粒让手指的脊线彼此接触产生电回路，从而产生出指纹图像。警方的这次尝试为新时期犯罪取证提供了全新的思路，有助于今后类似案件的成功解决。