Bloodstain Pattern Analysis Training in Texas
40-Hour Hands-On Law Enforcement Training
Pinnacle Forensics provides 40-hour, hands-on bloodstain pattern analysis training for law enforcement and forensic personnel in Texas. The course develops practical skills in bloodstain recognition and interpretation, angle-of-impact analysis, area of convergence and area of origin, documentation, reconstruction, and practical application.
40 Hours • IAI-Approved • 15 Practical Exercises • 300-Page Printed Course Manual
Eligible for TCOLE continuing education credit — View TCOLE credit information
Bring bloodstain pattern analysis training to your agency
Host this 40-hour course at your agency and make specialized bloodstain pattern analysis training available to your personnel without requiring multiple employees to travel. Pinnacle Forensics provides on-site training for law enforcement agencies throughout Texas.
Hosting is especially valuable for agencies that want to train multiple investigators, crime scene personnel, or forensic specialists in a consistent, practical approach to bloodstain pattern analysis while reducing travel costs and time away from duty.
Complimentary host seats
A minimum of 10 paid attendees is required to confirm the course. Host agencies receive complimentary seats based on paid enrollment.
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John Calvin Gaziano, MFS, MS
Bloodstain pattern analysis instructor • forensic consultant • retired police sergeant
John personally teaches each Pinnacle Forensics Bloodstain Pattern Analysis course. He brings 32 years of law enforcement experience, including 24 years in crime scene investigation, and spent more than 20 years assigned to the Fremont Police Department Crime Scene Investigation Unit, later supervising the unit as a sergeant.
His academic credentials include a Master of Forensic Science, a Master of Science in Criminal Justice, and a Bachelor of Science from the University of California, Berkeley. John has processed, analyzed, and reconstructed thousands of crime scenes and has been qualified in court as an expert in bloodstain pattern analysis.
John has extensive experience applying bloodstain pattern analysis in violent-crime investigations and courtroom testimony. His instruction emphasizes practical pattern recognition, documentation, reconstruction, and evidence-supported interpretation that investigators can apply in the field.
What students say about bloodstain pattern analysis training
The testimonials below are excerpts from student reviews. Full, unedited reviews are available on our Testimonials page.
“In my 25 year career in Law Enforcement, this is the best Blood Pattern course I have attended. I highly recommend this course.”
Margarita Strahan
Aransas County Sheriff’s Office
“This class was amazing. From the lectures to the hands-on experiments, it covered everything!”
Megan Shaw
Santa Clara County Crime Lab
“He is extremely knowledgeable, passionate, and an expert in this field. His course was filled with fun experiments and had many learning opportunities.”
Candace Cook
San Francisco Sheriff’s Office
Topics covered in bloodstain pattern analysis training
- Introduction to bloodstain pattern analysis
- Biology and characteristics of blood
- Blood drops on impact
- Interpretation limitations
- Bloodstain patterns
- Physics of bloodstain pattern analysis
- Area of convergence and area of origin
- DNA, forensic pathology, and reconstruction
- Bloodstain pattern documentation
- Courtroom testimony
- Chemical detection and enhancement
- Bloodborne pathogens
Course information
- Course duration: 40 hours
- Tuition: $795
- Prerequisites: None
- Course materials: Printed 300-page course manual included
- Registration: No payment required until the course is confirmed
- IAI certification credits: 40 credits toward Bloodstain Pattern Analyst Certification/Recertification
- IAI certification credits: 40 credits toward Crime Scene Certification/Recertification
Systematic bloodstain documentation
Students learn a systematic approach to documenting bloodstain evidence, including identifying, labeling, photographing, and organizing stains and patterns for accurate reporting and courtroom testimony.
Example of systematic bloodstain documentation used during training
Bloodstain pattern analysis training videos
Short instructional videos demonstrating practical bloodstain pattern analysis methods used during crime scene investigations.
Bloodstain Pattern Analysis Training Videos
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Explosive force can disperse liquid blood into fine droplets and produce complex impact patterns on nearby surfaces. Interpretation should be grounded in overall scene context and the pattern’s features and may help distinguish forward blood spatter from backspatter when the staining is suitable for analysis.
Stain size in impact patterns can correlate with the force applied to a liquid blood source, but droplet size alone does not identify the mechanism. A reliable interpretation considers the suspected object or event dynamics and whether the pattern contains sufficient characteristics to support area-of-origin analysis.
Individual bloodstains can range from circular to elliptical, and their shape reflects the angle at which blood impacts a surface. When enough suitable stains are present, impact-angle interpretation can be correlated across the pattern to support an area-of-origin determination.
Cast-off patterns are linear to semi-linear bloodstain trails, sometimes with slight curvature, formed when blood is released from an object in motion. They commonly result from swinging movements of a blood-bearing object such as a hammer, pipe, or hand.
Bloodstain pattern analysis training demonstrations
Short instructional demonstrations from live Bloodstain Pattern Analysis training, designed for crime scene investigators and focused on practical methods and evidence-supported interpretation.
Bloodstains and bloodstain patterns
A quick visual reference to bloodstains and bloodstain patterns commonly evaluated in casework


















Microscopy in bloodstain analysis
Microscopy can help evaluate fine bloodstains on fabric and support distinctions such as transfer versus blood spatter when pattern features are subtle. Findings are interpreted in the context of the full case record and documented for clear reporting.
Bloodstain pattern analysis course FAQ
No payment is required when registering. Tuition is due only after the course has reached the minimum enrollment and has been confirmed.
The host agency should provide a classroom suitable for PowerPoint presentations and a sound system, along with a large practical-exercise area with flat walls, hard floors, and a ceiling height of at least 10 feet. An indoor gymnasium-type space works particularly well.
The course also includes a controlled firearm exercise using a securely mounted pistol. The host agency must provide access to an approved firearms range or another location authorized for live-fire training.
Access to a refrigerator for storing the training blood is preferred. If refrigeration is not available, Pinnacle Forensics can provide a cooler system for storage during the week.
Host bloodstain pattern analysis training in Texas
Pinnacle Forensics provides this 40-hour course on-site for law enforcement agencies throughout Texas. Hosting allows your agency to train multiple personnel locally while reducing travel costs and time away from duty.