New publication out now, examining the accuracy of two commonly used point-of-collection testing devices in detecting oral fluid THC. Tests were performed at fixed intervals over 3 hours, yielding a total of over 300 tests. Both devices produces a surprisingly high number of false positives and false negatives. By 180 min, all samples contained less than 10 ng/mL THC. Neither device met recommended criterion for sensitivity and accuracy.
You can read the full publication here.