---
title: The Particle Articles | forensics (2)
description: forensics | Gateway Analytical's blog gives you explores the world of pharmaceutical investigations, materials analysis, metal cleanliness testing, and general science fun! (2)
---

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# The Particle Articles

[![](https://info.gatewayanalytical.com/hubfs/Imported_Blog_Media/GSR_Particle1.jpg)](https://info.gatewayanalytical.com/particle-articles/blog/acquisition-of-third-sem-eds-system-will-be-used-exclusively-for-the-analysis-of-forensic-gunshot-residue-evidence)

## [Acquisition of Third SEM-EDS System will be Used Exclusively for the Analysis of Forensic Gunshot Residue Evidence](https://info.gatewayanalytical.com/particle-articles/blog/acquisition-of-third-sem-eds-system-will-be-used-exclusively-for-the-analysis-of-forensic-gunshot-residue-evidence)

 \[fa icon="calendar'\] Jul 13, 2012 10:40:21 AM / by [Rebekah Byrne](https://info.gatewayanalytical.com/particle-articles/author/rebekah-wagurak) posted in [Blog](https://info.gatewayanalytical.com/particle-articles/topic/blog), [crime scene investigation](https://info.gatewayanalytical.com/particle-articles/topic/crime-scene-investigation), [energy dispersive spectroscopy](https://info.gatewayanalytical.com/particle-articles/topic/energy-dispersive-spectroscopy), [forensic expert](https://info.gatewayanalytical.com/particle-articles/topic/forensic-expert), [Forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics), [forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics-2), [GSR analysis](https://info.gatewayanalytical.com/particle-articles/topic/gsr-analysis), [gunshot residue analysis](https://info.gatewayanalytical.com/particle-articles/topic/gunshot-residue-analysis), [Gunshot Residue Evidence](https://info.gatewayanalytical.com/particle-articles/topic/gunshot-residue-evidence), [scanning electron microscope](https://info.gatewayanalytical.com/particle-articles/topic/scanning-electron-microscope), [trace evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence), [Trace Evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence-forensics), [sem-eds](https://info.gatewayanalytical.com/particle-articles/topic/sem-eds)

[\[fa icon="comment"\] 0 Comments](https://info.gatewayanalytical.com/particle-articles/blog/acquisition-of-third-sem-eds-system-will-be-used-exclusively-for-the-analysis-of-forensic-gunshot-residue-evidence#comments-listing)

<https://info.gatewayanalytical.com/hubfs/Imported_Blog_Media/GSR_Particle1.jpg> SEM image of a GSR particle coupled with the EDS spectrum of its elemental composition 

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[![](https://info.gatewayanalytical.com/hubfs/Imported_Blog_Media/fracture-matching-brick1-300x234.png)](https://info.gatewayanalytical.com/particle-articles/blog/a-new-approach-to-3d-scanning-for-fracture-matching-toolmarks-and-impression-evidence)

## [A New Approach to 3D Scanning for Fracture Matching, Toolmarks and Impression Evidence](https://info.gatewayanalytical.com/particle-articles/blog/a-new-approach-to-3d-scanning-for-fracture-matching-toolmarks-and-impression-evidence)

 \[fa icon="calendar'\] May 22, 2012 10:30:15 AM / by [Rebekah Byrne](https://info.gatewayanalytical.com/particle-articles/author/rebekah-wagurak) posted in [Blog](https://info.gatewayanalytical.com/particle-articles/topic/blog), [forensic expert](https://info.gatewayanalytical.com/particle-articles/topic/forensic-expert), [Forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics), [forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics-2), [fracture matching](https://info.gatewayanalytical.com/particle-articles/topic/fracture-matching), [impression evidence](https://info.gatewayanalytical.com/particle-articles/topic/impression-evidence), [trace evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence), [Trace Evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence-forensics)

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Forensic science is a field that has taken leaps and bounds over the past several years.  From the advent of DNA analysis to the continued technological advancements in the sciences, the progress made in criminalistics has been remarkable.

[Read More \[fa icon="long-arrow-right"\]](https://info.gatewayanalytical.com/particle-articles/blog/a-new-approach-to-3d-scanning-for-fracture-matching-toolmarks-and-impression-evidence)

[![](https://info.gatewayanalytical.com/hubfs/Imported_Blog_Media/question1-300x300.jpg)](https://info.gatewayanalytical.com/particle-articles/blog/presumptive-testing-of-biological-fluids)

## [Presumptive Testing of Biological Fluids](https://info.gatewayanalytical.com/particle-articles/blog/presumptive-testing-of-biological-fluids)

 \[fa icon="calendar'\] May 15, 2012 10:28:28 AM / by [Cara Plese](https://info.gatewayanalytical.com/particle-articles/author/cara-plese) posted in [Blog](https://info.gatewayanalytical.com/particle-articles/topic/blog), [forensic expert](https://info.gatewayanalytical.com/particle-articles/topic/forensic-expert), [Forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics), [forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics-2), [hyperspectral imaging](https://info.gatewayanalytical.com/particle-articles/topic/hyperspectral-imaging), [Presumptive Testing](https://info.gatewayanalytical.com/particle-articles/topic/presumptive-testing), [testing for blood](https://info.gatewayanalytical.com/particle-articles/topic/testing-for-blood), [testing for saliva](https://info.gatewayanalytical.com/particle-articles/topic/testing-for-saliva), [testing for urine](https://info.gatewayanalytical.com/particle-articles/topic/testing-for-urine), [Trace Evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence-forensics)

[\[fa icon="comment"\] 0 Comments](https://info.gatewayanalytical.com/particle-articles/blog/presumptive-testing-of-biological-fluids#comments-listing)

The evaluation of forensic evidence has changed significantly since the 1994 DNA Identification Act.  Forensic DNA analysis plays a critical role in criminal investigations, and as a result now presents forensic labs with huge backlog issues due to the number of samples submitted for examination.  This is where presumptive testing of evidence, such as suspected biological fluids, can be helpful.

[Read More \[fa icon="long-arrow-right"\]](https://info.gatewayanalytical.com/particle-articles/blog/presumptive-testing-of-biological-fluids)

[![](https://info.gatewayanalytical.com/hubfs/Imported_Blog_Media/MAAFS20121-300x57.jpg)](https://info.gatewayanalytical.com/particle-articles/blog/gateway-analytical-to-present-at-2012-maafs-meeting-the-introduction-of-hyperspectral-imaging-as-an-additional-method-of-examination-for-tapes)

## [Gateway Analytical to Present at 2012 MAAFS Meeting: The Introduction of Hyperspectral Imaging as an Additional Method of Examination for Tapes](https://info.gatewayanalytical.com/particle-articles/blog/gateway-analytical-to-present-at-2012-maafs-meeting-the-introduction-of-hyperspectral-imaging-as-an-additional-method-of-examination-for-tapes)

 \[fa icon="calendar'\] May 10, 2012 10:08:58 AM / by [Cara Plese](https://info.gatewayanalytical.com/particle-articles/author/cara-plese) posted in [Blog](https://info.gatewayanalytical.com/particle-articles/topic/blog), [fluorescence Hyperspectral Imaging](https://info.gatewayanalytical.com/particle-articles/topic/fluorescence-hyperspectral-imaging), [forensic expert](https://info.gatewayanalytical.com/particle-articles/topic/forensic-expert), [Forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics), [forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics-2), [tape examination](https://info.gatewayanalytical.com/particle-articles/topic/tape-examination), [trace evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence), [Trace Evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence-forensics)

[\[fa icon="comment"\] 0 Comments](https://info.gatewayanalytical.com/particle-articles/blog/gateway-analytical-to-present-at-2012-maafs-meeting-the-introduction-of-hyperspectral-imaging-as-an-additional-method-of-examination-for-tapes#comments-listing)

The [Mid-Atlantic Association of Forensic Scientists](http://www.maafs.org/)(MAAFS) [annual meeting](http://www.maafs.org/#!annual-meeting) is being held later this month from May 14th through the 18th.  MAAFS is one of several regional/state [forensic science associations](http://www.ncfs.org/links.html) in the United States.  Regional meetings are great for scientists to attend because they usually require less travel than attending the national [AAFS meeting](http://www.aafs.org/aafs-2013-annual-meeting), and they provide a more personal forum for presentations and also networking with scientists from that particular region.  MAAFS is also a great forum for student presenters, as scholarships are awarded annually. I will be presenting on Thursday, May 17thon the benefits of including fluorescence [Hyperspectral Imaging](http://www.chemimage.com/products/instrumentation/examiner/index.aspx) (HSI) in the battery of analyses that are typically applied to tape examination.    Fluorescence HSI adds value to [tape examination](http://swgmat.org/tape.htm), because it is a macroscopic analysis that provides both visual and spectral results, requires little samples preparation, is non destructive, and can allow for a quick elimination in a comparison of known and questioned tapes.

[Read More \[fa icon="long-arrow-right"\]](https://info.gatewayanalytical.com/particle-articles/blog/gateway-analytical-to-present-at-2012-maafs-meeting-the-introduction-of-hyperspectral-imaging-as-an-additional-method-of-examination-for-tapes)

[![](https://info.gatewayanalytical.com/hubfs/Imported_Blog_Media/cd422f053d0cf70c21c2142ab52436ea1-300x214.jpg)](https://info.gatewayanalytical.com/particle-articles/blog/gateway-analytical-scientists-take-part-in-the-pine-richland-school-district-steam-curriculum)

## [Gateway Analytical Scientists Take Part in the Pine-Richland School District STEAM Curriculum](https://info.gatewayanalytical.com/particle-articles/blog/gateway-analytical-scientists-take-part-in-the-pine-richland-school-district-steam-curriculum)

 \[fa icon="calendar'\] Apr 10, 2012 2:51:19 PM / by [David Exline](https://info.gatewayanalytical.com/particle-articles/author/david-exline) posted in [Blog](https://info.gatewayanalytical.com/particle-articles/topic/blog), [Community](https://info.gatewayanalytical.com/particle-articles/topic/community), [community](https://info.gatewayanalytical.com/particle-articles/topic/community-2), [community support](https://info.gatewayanalytical.com/particle-articles/topic/community-support), [education](https://info.gatewayanalytical.com/particle-articles/topic/education), [forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics-2), [Pine-Richland](https://info.gatewayanalytical.com/particle-articles/topic/pine-richland)

[\[fa icon="comment"\] 0 Comments](https://info.gatewayanalytical.com/particle-articles/blog/gateway-analytical-scientists-take-part-in-the-pine-richland-school-district-steam-curriculum#comments-listing)

Two Gateway Analytical scientists ([David Exline](http://www.gatewayanalytical.com/about-us/the-scientist/#Dave) and Ryan Priore) have volunteered to take part in the advisory committee for the Science, Technology, Engineering, Arts, and Mathematics (STEAM) program in the [Pine Richland School District](http://pinerichland.schoolwires.net/pinerichland/site/default.asp).   The intention of this committee is to combine the talents and interests of the community to best support students within the Pine-Richland School District.  This group will meet periodically to discuss our focus on STEAM at both the elementary and secondary grade levels within the school district.  Discussions during our advisory committee meetings will focus on corporate outreach and partnerships, building student interest in STEAM education and future careers, and hands-on classroom applications of STEAM curriculum.

[Read More \[fa icon="long-arrow-right"\]](https://info.gatewayanalytical.com/particle-articles/blog/gateway-analytical-scientists-take-part-in-the-pine-richland-school-district-steam-curriculum)

[![](https://info.gatewayanalytical.com/hubfs/Imported_Blog_Media/ASCLAD-LAB-LOGO1.jpg)](https://info.gatewayanalytical.com/particle-articles/blog/gateway-analytical-on-track-to-meet-2012-ascldlab-quality-goal-for-trace-evidence-analysis)

## [Gateway Analytical on Track to Meet 2012 ASCLD/LAB Quality Goal for Trace Evidence Analysis](https://info.gatewayanalytical.com/particle-articles/blog/gateway-analytical-on-track-to-meet-2012-ascldlab-quality-goal-for-trace-evidence-analysis)

 \[fa icon="calendar'\] Apr 5, 2012 11:52:25 AM / by [Tricia Wood](https://info.gatewayanalytical.com/particle-articles/author/tricia-wood) posted in [Blog](https://info.gatewayanalytical.com/particle-articles/topic/blog), [forensic fiber analysis](https://info.gatewayanalytical.com/particle-articles/topic/forensic-fiber-analysis), [forensic hair analysis](https://info.gatewayanalytical.com/particle-articles/topic/forensic-hair-analysis), [Forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics), [forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics-2), [GSR analysis](https://info.gatewayanalytical.com/particle-articles/topic/gsr-analysis), [gunshot residue analysis](https://info.gatewayanalytical.com/particle-articles/topic/gunshot-residue-analysis), [quality assurance](https://info.gatewayanalytical.com/particle-articles/topic/quality-assurance-2), [quality control](https://info.gatewayanalytical.com/particle-articles/topic/quality-control), [quality management system](https://info.gatewayanalytical.com/particle-articles/topic/quality-management-system), [quality system](https://info.gatewayanalytical.com/particle-articles/topic/quality-system), [trace evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence), [Trace Evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence-forensics)

[\[fa icon="comment"\] 0 Comments](https://info.gatewayanalytical.com/particle-articles/blog/gateway-analytical-on-track-to-meet-2012-ascldlab-quality-goal-for-trace-evidence-analysis#comments-listing)

I'm excited to say that Gateway Analytical is one step closer to achieving its 2012 goal of [ASLCD/LAB](http://www.ascld-lab.org/) accreditation for our forensic [trace evidence analysis services](http://www.gatewayanalytical.com/industries-served/forensic/forensic-testing/trace-evidence-experts-for-the-forensic-industry/). We've submitted the required application materials including the Quality Management System Manual, [Statement of Qualifications](http://www.wisegeek.com/what-is-an-statement-of-qualifications-soq.htm) (SOQs), and [Standard Operating Procedures](http://en.wikipedia.org/wiki/Standard_operating_procedure) (SOPs), among others, which have been accepted by the assigned assessor and we are now undergoing a document [gap analysis](http://www.businessdictionary.com/definition/gap-analysis.html).   We expect our certification audit to be in May or June and look forward to meeting our goal of ASCLD/LAB accreditation in late Q3 or early Q4!

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[![](https://info.gatewayanalytical.com/hubfs/Imported_Blog_Media/Rabbit-hair1.jpg)](https://info.gatewayanalytical.com/particle-articles/blog/webinar-recap-forensic-analysis-of-hair-and-fibers-for-police-and-attorneys)

## [Webinar Recap: Forensic Analysis of Hair and Fibers for Police and Attorneys](https://info.gatewayanalytical.com/particle-articles/blog/webinar-recap-forensic-analysis-of-hair-and-fibers-for-police-and-attorneys)

 \[fa icon="calendar'\] Mar 19, 2012 9:30:13 AM / by [David Exline](https://info.gatewayanalytical.com/particle-articles/author/david-exline) posted in [Blog](https://info.gatewayanalytical.com/particle-articles/topic/blog), [crime scene investigation](https://info.gatewayanalytical.com/particle-articles/topic/crime-scene-investigation), [fibers collection methods](https://info.gatewayanalytical.com/particle-articles/topic/fibers-collection-methods), [forensic fiber analysis](https://info.gatewayanalytical.com/particle-articles/topic/forensic-fiber-analysis), [forensic hair analysis](https://info.gatewayanalytical.com/particle-articles/topic/forensic-hair-analysis), [Forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics), [forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics-2), [hair collection methods](https://info.gatewayanalytical.com/particle-articles/topic/hair-collection-methods), [trace evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence), [Trace Evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence-forensics)

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[![](https://info.gatewayanalytical.com/hubfs/Imported_Blog_Media/gunshot-res1-150x150.jpg)](https://info.gatewayanalytical.com/particle-articles/blog/webinar-recap-forensic-gunshot-residue-gsr-analysis-for-police-attorneys)

## [Webinar Recap: Forensic Gunshot Residue (GSR) Analysis for Police & Attorneys](https://info.gatewayanalytical.com/particle-articles/blog/webinar-recap-forensic-gunshot-residue-gsr-analysis-for-police-attorneys)

 \[fa icon="calendar'\] Mar 2, 2012 11:00:39 AM / by [David Exline](https://info.gatewayanalytical.com/particle-articles/author/david-exline) posted in [Blog](https://info.gatewayanalytical.com/particle-articles/topic/blog), [crime scene investigation](https://info.gatewayanalytical.com/particle-articles/topic/crime-scene-investigation), [forensic expert](https://info.gatewayanalytical.com/particle-articles/topic/forensic-expert), [Forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics), [forensics](https://info.gatewayanalytical.com/particle-articles/topic/forensics-2), [GSR analysis](https://info.gatewayanalytical.com/particle-articles/topic/gsr-analysis), [gunshot residue analysis](https://info.gatewayanalytical.com/particle-articles/topic/gunshot-residue-analysis), [trace evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence), [Trace Evidence](https://info.gatewayanalytical.com/particle-articles/topic/trace-evidence-forensics)

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On Feb 7th, 2012 Gateway Analytical hosted a live webinar titled “Forensic Gunshot Residue Analysis for Police & Attorneys”. During the webinar our presenters, David Exline and Cara Plese, discussed what gunshot residue (GSR) is, how to collect it and control contamination, the historical and current methods of analytical testing of GSR, as well as a discussion on how terminology in the GSR community has changed and why.

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