Interesting research, but a dangerous idea in practice. Better to just not consume any drink that falls under suspicion rather than presume to rely on an app. I

Interesting research, but a dangerous idea in practice. Better to just not consume any drink that falls under suspicion rather than presume to rely on an app. It is assured that any such app will regularly produce false negatives even under the most generous circumstances, but even one failure is unacceptable for this use-case. Further, there's also the risk of false positives, which could result in serious and sometimes irreversible consequences for the falsely accused.