How Training is Helping Law Enforcement and Legal Teams Make Sense of GSR

When it comes to criminal investigations involving firearms, few types of physical evidence are as misunderstood, and as potentially powerful, as Gunshot Residue (GSR). While laboratories like RJ Lee Group specialize in analyzing GSR with precision, the value of that analysis ultimately depends on how well the evidence was collected, handled, and interpreted.

That’s why RJ Lee Group offers customized GSR training sessions for law enforcement and legal professionals—so your team can better understand this crucial form of trace evidence and apply it more effectively in the cases you are working with.

A Real-World Guide to GSR

Our GSR training is not an analyst certification course or a deep dive into the technical aspects of laboratory analysis. Instead, it’s designed to empower police officers, detectives, crime scene investigators, prosecutors, and defense attorneys with the practical knowledge they need to:

• Understand what GSR is and how it behaves
• Collect GSR samples correctly in the field
• Avoid contamination or loss of evidence
• Interpret laboratory findings in context
• Communicate GSR results effectively in court

Whether you’re trying to build a stronger case, challenge forensic evidence, or simply ensure best practices in evidence handling, this training gives you the confidence to use GSR results appropriately and persuasively.

Flexible, Expert-Led Training—On Your Terms

We know how demanding your schedules can be, which is why RJ Lee Group offers flexible training options:

• On-site training at your department or facility
• Virtual presentations tailored to your team’s needs

Our trainers are experienced gunshot residue experts who have worked on hundreds of criminal cases across the US, the Caribbean, and abroad. They understand the science and the stakes and tailor the training accordingly.

Ready to Learn More?

If you're looking to enhance your team’s understanding of GSR and how it fits into the broader context of forensic investigations, contact RJ Lee Group today. We’ll work with you to schedule a training session that meets your needs and helps you get the most out of every case.