Wisconsin first to test repeat drunken drivers with alcohol biomarkers

About 100 milligrams of nails are all that's needed to show if someone has been heavily drinking — at least six binges in the past three months.

In the past several years, a handful of Wisconsin counties became the first nationwide to test repeat drunken drivers for molecular evidence of heavy drinking in nail or blood samples. Researchers say their initial data show that biomarker testing during treatment may help these offenders stay sober longer, keep them from getting rearrested, save counties money — and make roads safer. Continue Reading