Sterile biological evidence extraction swabs are specialized tools for collecting blood, saliva, and semen, ensuring forensic sample integrity for DNA analysis.
Core Content
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Design: Flocked/foam heads (max sample retention) with breakable handles for easy tube transfer; pre-sterilized.
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Usage: Swab target evidence (bloodstains, saliva traces, semen); place head in preservative tube; label and transport.
Key Features
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Sterility: Single-use, tamper-evident packaging prevents contamination.
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Versatility: Works for blood, saliva, semen on porous/non-porous surfaces.
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High yield: Flocked heads retain 30-50% more cells than cotton swabs.
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Forensic-compliant: Supports chain-of-custody and court admissibility.
Application Scope
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Crime scenes: Homicides, assaults, sexual offenses for biological evidence.
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Forensic labs: Processing trace evidence from weapons, clothing, surfaces.
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Cold cases: Re-sampling old evidence to recover viable DNA.