To avoid voilence and Terrorist affairs. Nowadays more and more countries are prompting laws of using Handheld PDAs to do sim card registration, car parking and police patrol etc to improve efficiency as well as on time server monitering.

How a handheld PDA to do national ID Authentication and SIM card registration?

Firstly, on hardware part, the PDA should be rugged and with features like fingerprint sensor, ID card module reader, Network like 4G or 2G etc.

On software part, the government entities or organization should give server ports for recording all datas and check online anytimes.

Here below is a simple video to show a rugged android biometric PDA works