TW really fell behind in this area, your county designs motherboard, power supply and manufacture apple cpu. TW got the world leading technology but random breath test (RBT) rule is like third world country.
In Australia for example. Police perform RBT on some same common locations as well as on more smaller roads. Police will even pull over people driving in S shapes to do RBT, it is their job. Also the idea of RBT is to send the message that don’t drink and drive since police are everywhere. Please explain why and how this 侵犯到車內隱私空間.