Answer : The use of biometrics is used in machine readable passports etc. in Bangladesh to help the customer in purchasing mobile SIM to make passports for identification of criminals and persons to control computer usage. The technology is being used for law enforcement and various security measures. The U.S. Department of Immigration is also using the biometrics system. Biometrics security methods are also being used for cars , computers, etc. At present biometric system is also being used in different fields in Bangladesh. For example: In National Identity Card , fingerprints are taken for identification in case of SIM registration. Big computer and software companies are now doing research on biometrics. Biometric technology is a network computer company called NCR that has developed an eyeball detector. This new technology of science has been invented by an organization called Sensor Inc.