The device at the police station works no differently than the roadside one. It is just considered more accurate in that it gives a number value to represent the estimated percentage of alcohol in your blood, based on the concentration of VOCs in your breath that have methyl groups. Roadside only does pass/fail/warn. The only way to actually know what is present in your system is a blood test. People don’t normally get breathalyzers unless there is a reason for it, even at RIDE checkpoints so yes, we may introduce a possibility of incriminating someone based on the results of a breathalyzer test alone. Unless we just stick to probable cause.
The device at the police station works no differently than the roadside one. It is just considered more accurate in that it gives a number value to represent the estimated percentage of alcohol in your blood, based on the concentration of VOCs in your breath that have methyl groups. Roadside only does pass/fail/warn. The only way to actually know what is present in your system is a blood test. People don’t normally get breathalyzers unless there is a reason for it, even at RIDE checkpoints so yes, we may introduce a possibility of incriminating someone based on the results of a breathalyzer test alone. Unless we just stick to probable cause.