>"Phosphatidylethanol (PEth) is a direct marker, formed only in the presence of ethanol, and can detect heavy or binge drinking for up to 4 weeks after consumpt

>"Phosphatidylethanol (PEth) is a direct marker, formed only in the presence of ethanol, and can detect heavy or binge drinking for up to 4 weeks after consumption." We should simultaneously use this marker to prove drunk driving instead of the clearly outdated direct measurements.