Date Rape Drug Testing Is Totally Unreliable

From the article:

America’s system for date rape drug testing is riddled with flaws, according to a review of thousands of pages of lab manuals from every state across the country, as well as dozens of interviews with nurse examiners, toxicologists, law enforcement officials, advocates and lawyers. The testing equipment in some labs isn’t sensitive enough to detect substances at low concentrations, despite the fact that drugs break down quickly in the body, and it may be hours or even days before the victim has recovered sufficiently to report an assault. Other labs test only blood, even though evidence of drugs last much longer in urine, or don’t have the resources to test sexual assault cases at all.

More than 100 substances have been used in date rapes. Labs can’t develop tests quickly enough to keep up.
And some labs rely entirely on a type of drug screen so notoriously fallible that the United Nations Office on Drugs and Crime recommends that it never be used in drug-facilitated sexual assault cases — noting that “false negative results” caused by its “insufficiently sensitive methods” risk bringing investigations to a premature end.

What constitutes a positive result differs widely from state to state. In Florida, a urine screen for opiates would come back negative if it showed less than 150 nanograms per milliliter. But if that same sample were tested in New Jersey’s state lab, for example, the results would be deemed positive — even down to as little as 10 nanograms per milliliter.

Source: Date Rape Drug Testing Is Totally Unreliable

I had no idea these tests were so unreliable, badly interpreted, and inconsistent. They commonly have negative results, despite actually being used on victims that have been drugged.