How Do Forensics Professionals Get the Job Done Right?

Puritan has the answer. Use the Right Tool, the Right Way - Every time.

You don't get a second chance to collect critical evidence at a fresh crime scene, so do it right. Forensics Professionals rely on one most basic tool of the trade - a swab. Swabs from Puritan are the right choice. US made and of the highest quality, these swabs are available in a variety of configurations for evidence collection - each delivers reliable performance with the CSI tech in mind.

At Puritan we know how critical it is that the swab you use is free of cross-contamination. We know you work under harsh conditions and that you need a swab that is easy to use and reliable. And we have the technical know-how and the dedicated staff to assure the swab you choose from Puritan is the one to get the job done right.

Don't guess - know the swab you need. Puritan is here to help with a valuable resource, your free info packet - PURITAN FORENSIC SWABBING KIT - that spells out what you need to know about swabs for crime scene evidence collection.

When investigators train with swabs, they learn the proper handling techniques of collection, chain of custody, and transport. But there is more than one swab to consider. One instructor in this specialized training, Dyer Bennett with Sirchie, tells us this: "Standard cotton swabs are valued for their absorbent properties and low cost. They are commonly used for collection of buccal cells and blood, where there is an ample volume of material to collect and a recoverable volume of DNA is assured. In crime scene training, the proper technique of conducting a presumptive test is covered. Here two cotton tipped applicators are used - one to gather a suspect material (sputum or semen) on the cotton tip which is then moistened with the appropriate indicating solution to determine the kind of material found. Once confirmed as the suspect material, the specimen is transferred to a second CTA for transport to the DNA lab for identification.

"Flock swabs are the elite force in the swab world are the first choice for touch DNA, where it is necessary to lift DNA evidence that is not visible from door knobs, handguns, cell phones and similar hard surfaces. When nanograms count, flock is the swab of choice."

 

Going further into specialty packaging, we were told the "FAB SWAB is demonstrated as the 'best swab for the crime scene'. Self-contained swab with breathable container, it reduces contamination risks and eliminates the need for additional transportation deices (i.e. swab box or other). Whether using the cotton tip for presumptive testing, or the flock for collection of touch DNA, the FAB SWAB will deliver the specimen safely and reliably."

"Training is also done with DNA free swabs from Puritan … these higher priced versions of familiar items are manufactured under tightest controls…"

 

We asked Sheryl McCollum which swab is the first choice for use in CSI? Her reply: "As the Director of the Cold Case Investigative Research Institute and an active CSI with a metro police department, it's imperative to collect all evidence without cross contamination. I love the Sterile Cotton Sean with the Cap-Shure top. I can secure this cap with one hand! In the field at an active crime scene often we are collecting evidence in precarious positions while holding a flashlight. To be able to secure DNA scientifically and securely without having to use both hands to fold a box is remarkable. The ventilated cap allows your evidence to air dry and stay in place during transportation."

Linnell Burton, a well-known veteran crime scene investigator and the founder and director of BluePrintCamp, is a passionate teacher. She trains young people in the techniques she relied on during her years as an active duty investigator and expert witness. Here too, of course, they utilize swabs. As for her go-to swab for these exercises, she says: "The sterile cotton tip swabs with the protective cap enclosure" - Cap-Shure. Why?: "Because the sterile cotton tip absorbs any biological fluids (blood, saliva, urine, or fecal matter) collected and the plastic cap immediately can preserve the physical evidence for further analysis. Plus, the swabs are good for preserving substrate and non substrate physical evidence."

You know the importance of a swab. Now get the facts and choose wisely. Download our free offer: the Forensic Swabbing Kit, which includes the following:

AN INFOGRAPHIC that identifies six tools you should always have on hand to get the job done right
A CHECKLIST that takes you through every step of the DNA evidence collection process
A FLOWCHART that helps you choose which tool is best for each type of DNA evidence collection

Puritan has been manufacturing single use products in Guilford, Maine since 1919.

Note: This is a sponsored section of EvidenceMagazine.com

 






Forensic Podiatry (Part Two of Two)

THE DISCIPLINE of forensic podiatry—or, in other words, the examination of pedal evidence—has progressed significantly over the past ten years. It is no longer a question of “What can you do with a footprint?” but rather, “Who can we use to evaluate the footprint?” Cases involving pedal evidence, especially bloody footprints and issues of determining shoe sizing or fit issues compared to questioned footwear, have become more common over the past two or three years.

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