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Bloodstain Pattern Analysis & Death Investigation Training

Evidence Over Assumption is a forensic science training and educational platform specializing in bloodstain pattern analysis, death investigation, and crime scene reconstruction. Professional forensic training built from real case experience, courtroom testimony, and over 4,000 investigated scenes.

Our online training and digital books are designed for those seeking a clear, foundational understanding of how forensic evidence is interpreted in real-world investigations.

Taught by one of the world's only certified bloodstain pattern and crime scene analyst and medicolegal death investigator, Jeffrey Gentry, BPA, our courses provide practical, experience-based instruction for law enforcement, forensic professionals, students, and anyone looking to learn how evidence—not assumption—drives investigative conclusions.

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Complete Forensic Training Bundle

$300.00

Complete Forensic Training Bundle

$300.00

Online forensic science training course covering crime scene investigation, DNA, fingerprints, toxicology, firearms, and forensic laboratory analysis.

Forensic Science: Applications to Death and Crime Scene Investigations | Self-Paced Online Course

$100.00

Forensic Science: Applications to Death and Crime Scene Investigations | Self-Paced Online Course

$100.00

Online forensic death investigation training covering scene documentation, evidence preservation, medicolegal investigation procedures, and forensic reporting.

Death Investigation: Information to Obtain During a Forensic Death Investigation | Self-Paced Online Training Course

$100.00

Death Investigation: Information to Obtain During a Forensic Death Investigation | Self-Paced Online Training Course

$100.00

Professional online bloodstain pattern analysis course taught by certified forensic investigator Jeffrey Gentry covering blood evidence interpretation and scene reconstruction.

An Introduction to Bloodstain Pattern Analysis | Self-Paced Online Training Course

$100.00

An Introduction to Bloodstain Pattern Analysis | Self-Paced Online Training Course

$100.00

Professional suicide death investigation training course focused on forensic scene assessment, investigative methodology, and evidence-based death investigation.

Suicide Death Investigation – Scenario-Based Training | Self-Paced Online Course

$100.00

Suicide Death Investigation – Scenario-Based Training | Self-Paced Online Course

$100.00

Crime Scene Investigator Action Figures – Forensic Collectibles

$150.00

Crime Scene Investigator Action Figures – Forensic Collectibles

$150.00

Bloodstain Pattern Analysis Book – Visual Training Guide for Investigators

$35.00

Bloodstain Pattern Analysis Book – Visual Training Guide for Investigators

$35.00

Death Investigation Guide – Essential Information for Investigators

$40.00

Death Investigation Guide – Essential Information for Investigators

$40.00

Forensic Science Guide – Crime Scene and Death Investigation Applications

$30.00

Forensic Science Guide – Crime Scene and Death Investigation Applications

$30.00

Suicide Death Investigation Guide – Scenario-Based Training

$35.00

Suicide Death Investigation Guide – Scenario-Based Training

$35.00

Jeffrey Finds a Dead Body – A Forensic Science Book for Kids

$25.00

Jeffrey Finds a Dead Body – A Forensic Science Book for Kids

$25.00

What is a Death Investigator? – Introduction to Death Investigation

$25.00

What is a Death Investigator? – Introduction to Death Investigation

$25.00

Crime Scene & Forensic Science Coloring Book

$35.00

Crime Scene & Forensic Science Coloring Book

$35.00

Suicide Death Investigation Training Guide (PDF) – Scenario-Based Approach

$30.00

Suicide Death Investigation Training Guide (PDF) – Scenario-Based Approach

$30.00

Bloodstain Pattern Analysis Guide (PDF) – Visual Training for Investigators

$30.00

Bloodstain Pattern Analysis Guide (PDF) – Visual Training for Investigators

$30.00

Jeffrey Gentry, BPA

Training Built on Real Investigations — Not Theory

Jeffrey Gentry is a certified forensic professional specializing in bloodstain pattern analysis, medicolegal death investigation, and crime scene reconstruction.

He is a Registered Medicolegal Death Investigator through the American Board of Medicolegal Death Investigators (ABMDI) and holds certifications through the International Association for Identification (IAI) as both a Bloodstain Pattern Analyst and Senior Crime Scene Analyst.

Over the course of his career, Jeffrey has:

Investigated over 4,000 death cases
Worked more than 1,500 unnatural deaths
Responded to over 315 homicide investigations
Processed and analyzed thousands of crime scenes

His experience spans field investigation, forensic laboratory work, autopsy support, and courtroom testimony. He has provided expert analysis and opinion in legal proceedings, applying forensic principles to real-world cases where accuracy and defensibility are critical.

In addition to casework, Jeffrey has taught forensic science and bloodstain pattern analysis at both professional and academic levels, focusing on practical application rather than theory alone.

This training is built from real investigations, real casework, and real courtroom experience — designed to prepare you for how forensic science is actually applied.

Forensic Knowledge Backed by Real Case Experience

April 05, 2026

What Is an Impact Spatter Bloodstain Pattern? A Forensic Explanation

What Is Impact Spatter? Impact spatter is a type of bloodstain pattern created when an external force is applied to a source of liquid blood, causing it to break into smaller droplets that are projected outward from the point of origin. These patter...

February 25, 2026

What Is a Bloodstain Pattern Analyst?

Introduction: The Role of Bloodstain Pattern Analysis in Modern Forensic Investigations Bloodstain pattern analysis (BPA) is a forensic discipline focused on the identification, documentation, and interpretation of bloodstains at crime scenes. A blo...

Reading about forensic science is only the beginning.

Learn how these principles are applied in real investigations through structured training.

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So… Jeffrey Found a Dead Body

A forensic science children's book that introduces young readers to death investigation and crime scene science.

(Rigor Mortis, Livor Mortis, Decomposition, Insect Activity, DNA Testing, Forensic Pathology, Crime Scene Investigation)

Jeffrey Finds a Dead Body is a darkly humorous, illustrated introduction to forensic science, decomposition, and death investigation.

Follow Jeffrey as a strange discovery in the woods turns into a journey through the real science investigators use to understand what happens after death.

Simple illustrations. Real forensic facts. A little bit of dark humor.

Get Your Copy on Amazon

Forensic Training Courses

Evidence Over Assumption

A forensic training philosophy centered on mechanism-based analysis, scientific reasoning, and evidence-supported conclusions over speculation or narrative-driven interpretation.

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