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Sirchie DNA-free squirrel hair fingerprint brush 120 in breathable pouch

Sirchie

Sirchie DNA-Free Squirrel Hair Fingerprint Brush 120

SKU CH-6X7A-M2G0H

Squirrel-hair fingerprint brush certified DNA-free for latent-print work with DNA-free powders

  • DNA-free certification protects evidence integrity
  • Third-party tested to confirm every lot is DNA-free
  • Squirrel-hair bristles apply powder gently and evenly
  • Breathable pouch keeps brush clean between uses
  • Designed for use with DNA-free fingerprint powders

DNA-Free Forensic Fingerprint Brush

The Sirchie DNA-Free Squirrel Hair Fingerprint Brush 120 is a professional tool for crime scene investigators and forensic technicians. It is designed to develop latent fingerprints using certified DNA-free powders for evidence lifting. The brush uses high-quality squirrel hair bristles for gentle, precise application on various surfaces. It is not suited for general cleaning or non-forensic powder applications.

Thermals Noise and Power Draw

This brush is a passive manual instrument with no moving parts, electronics, or power requirements. It generates no heat, produces no operational noise, and draws zero power during use. Performance depends entirely on the examiner's technique and the specific DNA-free powder selected. There are no thermal, acoustic, or electrical characteristics to evaluate.

Upgrade Path and Value

This brush replaces standard fingerprint brushes that lack verified DNA-free certification. The jump is worth it when casework demands third-party validated decontamination to prevent cross-contamination of genetic evidence. Each lot undergoes independent testing to confirm DNA-free status before packaging in a breathable pouch. It is not a substitute for alternative lifting methods such as chemical reagents or adhesive lifters.

Highlights

  • DNA-free certification protects evidence integrity
  • Third-party tested to confirm every lot is DNA-free
  • Squirrel-hair bristles apply powder gently and evenly
  • Breathable pouch keeps brush clean between uses
  • Designed for use with DNA-free fingerprint powders

Specifications

No published specifications for this item yet.

Questions about this item

How do I use the DNA-free squirrel hair brush with fingerprint powder without contaminating the scene?

Lightly dip the squirrel hair bristles into certified DNA-free powder, then apply with a gentle twirling motion to reveal latent prints; the brush ships in a breathable pouch to keep fibres clean between uses.

When will the brush need replacement or maintenance?

The squirrel hair bristles are durable for repeated field use; replace the brush if fibres become matted, shed, or if a new lot is required to maintain DNA-free certification.

What is the first limitation that appears during sustained crime-scene processing?

Model 120 relies on the brush remaining DNA-free; once the certified lot status is compromised by wear or contamination, evidentiary integrity is the limiting factor.

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