Objects of Examination
QUANT Multidisciplinary Chemical Technology Center
Gunshot Residue (GSR) Examination and Firearms Discharge Analysis
Reliable gunshot residue analysis is essential for establishing firearm-related circumstances in criminal investigations and litigation—such as confirming the presence of discharge products, assessing transfer and persistence on hands or clothing, and estimating firing distance. QUANT Multidisciplinary Chemical & Technological Center provides independent forensic GSR examination using high-sensitivity chromatographic and spectrometric methods, supported by rigorous sample handling and validated analytical workflows. Our experts deliver defensible findings suitable for investigative and court proceedings, as well as for technical case review and expert consultation
Professional Gunshot Residue (GSR) Examination
Gunshot residue examination plays a critical role in the investigation of criminal cases involving the use of firearms. Even trace amounts of residues on hands, clothing, or intermediate targets can confirm the occurrence of a gunshot, assist in estimating firing distance, and help associate a specific firearm with the incident under investigation.
Gunshot residues constitute a complex, multi-component mixture that includes unburned and partially burned propellant particles, combustion products of smokeless powder, residues from the primer composition, as well as traces resulting from the interaction of the projectile with the firearm barrel. The detection and subsequent analysis of these components make it possible to reconstruct the circumstances of a shooting with a high degree of reliability.
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20+ YEARS OF EXPERIENCE
Our team includes experts with over 20 years of experience in law enforcement and forensic science.
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The QUANT laboratory is equipped with one of the most advanced suites of analytical instruments in Russia.
How Gunshot Residue Examination Assists in Crime Investigation
Gunshot residue (GSR) examination addresses one of the most critical tasks in forensic science — establishing the fact and circumstances of firearm discharge. Even minimal traces on hands, clothing, or intermediate targets may indicate an individual’s involvement in a shooting, confirm the use of a specific firearm, and help reconstruct the sequence of events.
By applying advanced analytical methodologies, forensic experts are able not only to detect the presence of gunshot residues but also to determine their nature, source of origin, and the conditions under which they were formed.
establish whether a shot was fired from the firearm submitted for examination;
detect and characterise gunshot residue deposits on a victim’s clothing or on intermediate targets;
determine whether an individual discharged a firearm based on residues found on their hands or clothing;
estimate the firing distance;
associate detected residues with a specific type of firearm and ammunition.
Reliability and Legal Validity of the Examination
All examinations are performed by specialists with relevant academic backgrounds and extensive experience in forensic and judicial practice. Expert opinions are prepared in compliance with the procedural legislation of the Russian Federation and are recognised by courts as authoritative and admissible evidence. The use of modern analytical instrumentation and internationally accepted forensic methodologies ensures the accuracy, objectivity, and reproducibility of results.
Methods Used in Gunshot Residue Examination
For the analysis of gunshot residues, our specialists apply a comprehensive set of modern forensic chemistry and physics techniques, including:
microscopic examination – for the detection and morphological characterisation of gunshot residue particles;
spectroscopic and X-ray fluorescence (XRF) analysis – for determining the elemental and chemical composition of residues;
chromatographic techniques – for analysing propellant components and combustion products;
comparative analysis using control samples of ammunition and firearms.
The combined application of these methods enables the detection of residues even at trace or minimal levels.
Practical Significance
Gunshot residue examination is widely used:
in criminal cases – during investigations of homicides, attempted murders, robberies, and illegal firearms trafficking;
in investigative practice – to establish the involvement of a specific individual in the use of a firearm;
in court proceedings – to confirm or refute the parties’ positions regarding the fact and circumstances of a firearm discharge.
The results of the examination help demonstrate the use of a firearm, reconstruct the sequence of events, and provide the court with objective, scientifically grounded evidence.
Order a Gunshot Residue Examination
If you require a gunshot residue examination, the specialists of LLC “MHTC QUANT” are ready to provide qualified assistance.
Receive a free expert consultation;
Submit a request via the contact form.
Your request will be reviewed promptly, and our expert opinion will serve as reliable and defensible evidence in court.
Yes. Modern forensic methodologies make it possible to detect gunshot residue even after a considerable period of time. However, for the most reliable results, samples should be collected as soon as possible after the incident.
The most frequent submissions include hand swabs collected from a suspect, clothing bearing suspected gunshot residue deposits, and extracts or swabs from the bore of a firearm to confirm its use.
Yes. Expert opinions issued by LLC “MHTC QUANT” are prepared in accordance with the procedural requirements of the Russian Federation and carry full legal force as admissible evidence in court proceedings.
The analysis focuses on propellant particles, combustion products, residues of primer initiating compositions, as well as microscopic metal particles and lubricant residues that may be deposited on hands, clothing, and intermediate targets during a firearm discharge.
ABOUT THE COMPANY
QUANT Multidisciplinary Chemical Technology Center
is a specialist bureau providing forensic examination and analytical chemistry services. For over 20 years we have been conducting expert investigations and delivering reports that help our clients protect their interests in court and in out-of-court proceedings.
8 (800) 333-18-22
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main@centr-quantum.com
454053, Россия, г. Челябинск, ул. Федорова д.25
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