The legal standard is beyond reasonable doubt, not beyond the shadow of a doubt. It's intentionally left fuzzy to allow prosecution in cases where absolute cert

The legal standard is beyond reasonable doubt, not beyond the shadow of a doubt. It's intentionally left fuzzy to allow prosecution in cases where absolute certainty is impossible, but we as society still need to have a decent chance of prosecuting offenders. We try to minimize the number of innocents who are wrongfully convicted, but there's always going to be some, otherwise there would be entire classes of crimes that would be almost completely unenforceable, due to their nature. That said, this article made me sick. It's obvious that the system is failing here, probably due to a combination of factors, including a lack of understanding of the accuracy of these tests as well as the filtering used to select who and what gets tested. Even if your test was 99.99% accurate, if officers spend all day gathering crumbs from people's cars and submitting them, and you end up with hundreds of millions of innocent samples to thousands of actual drug samples, you wind up with tens of thousands of false positives. So what we really need is corroborating evidence to get a sample set more skewed toward actual positives. Or just give up and stop trying to enforce possession laws.