Breath analyzers aren’t exactly accurate. There’s a bunch of things that can give them false positives, they often aren’t properly calibrated, and the science behind them is kinda shaky. They got challenged often enough in certain states that in at least one state if an officer has you breathe in a machine and that machine produces a number higher than the legal BAC limit, that’s proof of DUI regardless of what the machine may or may not do to result in that number.
Because it’s harder for cops to discriminate against dark skinned people if they use objective measurements.
Breath analyzers aren’t exactly accurate. There’s a bunch of things that can give them false positives, they often aren’t properly calibrated, and the science behind them is kinda shaky. They got challenged often enough in certain states that in at least one state if an officer has you breathe in a machine and that machine produces a number higher than the legal BAC limit, that’s proof of DUI regardless of what the machine may or may not do to result in that number.