Immunoassays are the most widely used screening technique ...

On January 27, 2001, he worked the midnight shift at the hospital. He ran a urine toxicology screen on the defendant. Over objection, he told the jury that the test was positive for benzodiazepines, cannabinoids, cocaine, methadone, opiates and propoxyphene.(JTp.23-38) Langley said his lab is a medical lab as opposed to a forensic lab. ................
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