Tag: color tests

Field Drug Test Kits: Presumptive Evidence Explained

Field Drug Test Kits: Presumptive Evidence Explained

Field drug test kits offer rapid screening for law enforcement but serve only as presumptive evidence. Learn how colorimetric tests work, why false positives happen, and when lab confirmation is legally required.

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chain of custody forensic science forensic toxicology digital forensics forensic pathology forensic documentation crime scene investigation lab accreditation trace evidence bloodstain pattern analysis biohazard cleanup criminal profiling forensic DNA forensic evidence forensic ballistics evidence integrity evidence preservation evidence handling legal admissibility forensic integrity

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