Forensic Consulting Services and Training

Gaziano Forensic Consulting is committed to providing top-notch forensic consulting services nationwide. We also offer comprehensive, practical crime scene investigator training utilizing the most up-to-date techniques. The lead instructor, retired Sergeant John Calvin Gaziano, has over 27 years of law enforcement experience, with two decades in the field processing thousands of crime scenes.

Forensic Consulting Services

Our forensic consulting services include detailed bloodstain pattern analyses and crime scene case reviews. We analyze bloodstained scenes to determine what occurred and reconstruct the sequence of events based on the bloodshed and scene context. The forensic reconstruction, completed by a bloodstain pattern expert, may assist in corroborating or refuting statements made by witnesses, victims, and suspects. Objectivity is paramount during the examination by letting the evidence determine the outcome. Learn more about our forensic consulting services on our forensic consultant page.

In addition, we provide crime scene case reviews to provide insight for attorneys. The case reviews may develop areas of interest or questions that need answering. With two decades of crime scene and bloodstain forensic experience, you will be confident about the results of our analysis.

Crime Scene Training

We teach week-long Bloodstain Pattern Analysis and Crime Scene Photography training courses. The bloodstain course is only offered in Texas, while the crime scene photography course is nationwide. The bloodstain pattern analysis course is approved by the International Association for Identification (IAI) and the International Association of Bloodstain Pattern Analysts (IABPA). We intend to include Shooting Reconstruction and Fundamentals of Crime Scene Investigation training courses in the future.

Google Reviews

Mr. Gaziano is a wealth of knowledge when it comes to Forensics. He is recognized worldwide for his superior understanding and teaching of Blood Stain Pattern Analysis. I took his course twice and each time I learned something new. He made this class fun with his own handmade practical exercises not used in any other courses. Calvin is a true mentor and I learned a lot from him over the years. You will not be disappointed with any course he teaches.

Chris Wilson

John is an excellent teacher and does an amazing job teaching his courses. I have testified in court on major cases, because of his instruction, which was both demonstrative and hands on. I was not only a student, but a participant in scientific experiments during his class, which helped my testimony. I highly recommend his courses and his experience as a consultant.

Ed Rudolph

Grace C

Calvin is so incredibly knowledgeable with what he teaches in his course. He even incorporated his own research and thesis into his class. I also really enjoyed the experience I gained with all of the hands on activities we did!

Kaylee Fitzpatrick

In 2013, I attended the 40-hour Bloodstain Pattern Investigation course with John Calvin Gaziano as the instructor. Calvin has an effective teaching method, which is clear and concise. During the hands-on training, he broke us into groups and gave each group multiple bloodstain patterns to identify. Because of Calvin's instructions, I can perform the stringing method within bloodstain spatter to identify the area of origin and I can identify the area of convergence. Due to Calvin's guidance throughout the years, I am certified in court as a Bloodstain Pattern Analyst.

Elona Porter

I took Mr. Gaziano’s bloodstain pattern course many years ago. To this day, I still have the binder he passed out in his class. He is extremely knowledgeable, passionate, and an expert in this field. His course was filled with fun experiments and had many learning opportunities. I highly recommend Mr. Gaziano’s class!

Candace Cook

Calvin Gaziano is a stellar Crime Scene Investigator and blood spatter expert. He breaks down the material so succinctly and thoroughly to make a laymen like myself understand it. He is one of the few IAI certified blood stain pattern analysts in the world. Excellent all the way around!

Jenn Ly

I have taken Calvin’s bloodstain pattern course twice, and I can’t say enough positive things about it. It is taught in a way that an entry level investigator or even the most senior would get a ton out of it. After taking his course, I had a much better understanding of what I was seeing at crime scenes. I would highly recommend this course for anyone who has anything to do with crime scene processing or investigation.

Don

This class was amazing. From the lectures, to the hands on experiments it covered everything! My training binder has not only been a constant resource for myself, but others at my lab who weren't as lucky as I was to have taken this class.

Megan Shaw

This class is one of the best I’ve taken. Calvin is a great instructor! Highly recommend this course!

Steve Hunt

This course was extremely informative, and was put together very well. Great course, I recommend it.

Amir Mahmood

Very knowledgeable instructor who breaks down difficult concepts into easy to remember concepts with insightful hands on practicals.

Paul Richards

Forensic Consulting Services and Training