4N6 FLOQSwabs® crime scene

DNA Collecting and Preserving DNA Evidence at a Crime Scene for Human Identificatin 


Copan has developed a unique and revolutionary product line 4N6FLOQSwabs® crime scene specifically designed for sample procurement of evidence found at a crime scene such as: sweat, semen, blood stains, skin and any environmental trace.

The advanced antimicrobial system neutralizes environmental microbes and preserves sample integrity up to 6 months at room temperature without air drying the swab. Superior uptake and release, and antimicrobial action makes this line suitable for crime scene investigations.

4N6FLOQSwabs® Crime Scene should not to be used in living humans.


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  • Brochure

    Divisible Swabs: Collect once and test twice


    4N6FLOQSwabs® crime scene has been specifically designed for evidence collection and preservation.

    > NO AIR-DRYING: the antimicrobial treatment applied on the fibers prevents microbial proliferation

    > DNA Preservation: 6 months of stability at RT

    Schermata 2016 10 04 alle 16.31.42

    > Breaking Point for PCR tubes

    > FORENSIC DNA GRADE: free of amplifiable human DNA, free of detectable DNase and RNase and EtO treated

    The 4N6FLOQSwabs™ crime scene divisible swab allows collection of the evidence using a single device which can be split into two equal parts for later analysis or sample record retention.

    > REPRODUCIBILITY consistent results from the two halves of the swab





    Can COPAN Crime Scene 4N6FLOQSwabs® be used on live humans?

    No. 4N6FLOQSwabs® Crime Scene swabs should not to be used in living humans.

    Does the sample need to be dried out?

    4N6FLOQSwabs® Crime Scene strong antimicrobial action allows the sample to be simply transferred into a transport tube or vial, without any need to dry out the sample.

    What is a flocked swab?

    FLOQSwabs® comprise of a solid molded plastic applicator shaft with a tip that can vary in size and shape. The tip of the applicator is coated with short Nylon® fibers that are arranged in a perpendicular fashion.

    What is the difference between a flocked swab and a traditional swab?

    FLOQSwabs® have no internal absorbent core to disperse and entrap the specimen, unlike traditional fiber wound swabs, which resemble a mattress or cushion.

    Why are flocked swabs better than traditional swabs?

    Because of the design, flocked swabs are better than traditional swabs because they absorb more sample due to capillarity and because the sample stays on the surface, it is eluted rapidly and on its entirety.

    Is the line of 4N6FLOQSwabs® DNase and RNase-Free?

    Yes. COPAN's 4N6FLOQSwabs® line is certified DNase, RNase-Free and is free of amplifiable human DNA.

    Do 4N6FLOQSwabs® inhibit PCR assays?

    No. Strict quality control measures and use of inhibitory-free components ensure that 4N6FLOQSwabs® are free of PCR inhibitors.

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    Scientific Studies

  • DNA Preservation 

    The antimicrobial agents applied on the 4N6FLOQSwabs® crime scene fibers allows the human DNA preservation up to 6 months at RT without the use of any drying agents.

    Free of Human Amplifiable DNA 

    A qualitative detection approach (STR profiling) has been adopted when testing the samples of finished products for lot release. We aligned with the technical standard requiring STR profiling for consumables used in DNA casework sample analysis.

    Free of Detectable DNase and RNase
    Free of Inhibitors to molecular amplification and STR analysis 
    EO treatment

    Copan employs ethylene oxide as an additional method to reduce the risk of DNA contamination on the finished products.

    Staff elimination database 

    Copan maintains an STR database of all the people involved in the manufacturing of the forensic products. This is extended also to the staff dedicated to maintenance, housekeeping and QC controls. The database is anonymous and laboratories can request to verify whether a profile belongs to a Copan employee.

    Anatomic and ergonomic design 

    Regular, anatomically and ergonomically shaped collection devices allow to collect samples from challenging surfaces and in situation with LCN (low copy number) DNA.

    Compability with different extraction method 

    4N6FLOQSwabs® crime scene have been validated with numerous DNA extraction methods and complete profiles were obtained by sequencing the DNA extracted.

    Click here to tell us more about your custom device needs