GTD Scientific

06/10/2025

𝟮𝟰 𝗛𝗢𝗨𝗥𝗦 𝗨𝗡𝗧𝗜𝗟...
𝗧𝗵𝗲 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗼𝗳 𝗣𝗿𝗼𝗻𝗲 𝗥𝗲𝘀𝘁𝗿𝗮𝗶𝗻𝘁 𝗗𝗲𝗮𝘁𝗵𝘀
𝗪𝗵𝗮𝘁 𝗘𝘃𝗲𝗿𝘆 𝗢𝗳𝗳𝗶𝗰𝗲𝗿 𝗡𝗲𝗲𝗱𝘀 𝗧𝗼 𝗞𝗻𝗼𝘄
Join the live webinar | Learn the science, save lives.
🚨 𝗟𝗲𝗮𝗿𝗻 𝘄𝗵𝘆 𝗮 𝗿𝗲𝘀𝘁𝗿𝗮𝗶𝗻𝘁 𝘁𝗲𝗰𝗵𝗻𝗶𝗾𝘂𝗲 𝗰𝗮𝗻 𝘁𝘂𝗿𝗻 𝗳𝗮𝘁𝗮𝗹 𝗶𝗻 𝗺𝗶𝗻𝘂𝘁𝗲𝘀?
And — yes, the science proves it.
𝗝𝗼𝗶𝗻 𝗚𝗧𝗗 𝗦𝗰𝗶𝗲𝗻𝘁𝗶𝗳𝗶𝗰’𝘀 𝗹𝗶𝘃𝗲 𝘄𝗲𝗯𝗶𝗻𝗮𝗿: 𝗧𝗵𝗲 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗼𝗳 𝗣𝗿𝗼𝗻𝗲 𝗥𝗲𝘀𝘁𝗿𝗮𝗶𝗻𝘁 𝗗𝗲𝗮𝘁𝗵𝘀 and learn the biomechanics and physiology that can silently push a restrained subject toward 𝗰𝗮𝗿𝗱𝗶𝗮𝗰 𝗮𝗿𝗿𝗲𝘀𝘁.
✅ How respiration changes in prone positioning
✅ The link between CO₂ buildup and metabolic acidosis
✅ 7 critical risk factors every officer should know
✅ How restraint techniques influence survival
Led by Dr. Geoffrey Thor Desmoulin, Ph.D., R.Kin., P.L.Eng., forensic biomechanics expert.
📅 On June 11th, 2025,
🕒 1.5 hours live
🎓 Earn professional credit + certificate
👉 Reserve your spot: https://us02web.zoom.us/webinar/register/WN_Kikj5tDYQ_2VjD0KA-i3pw #/registration

Also available through our partners at Policetraining.net.

Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems. Zoom Rooms is the original software-based conference room solution used around the world in board, confer...

06/04/2025

𝟳 𝗗𝗔𝗬𝗦 𝗨𝗡𝗧𝗜𝗟...
𝗧𝗵𝗲 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗼𝗳 𝗣𝗿𝗼𝗻𝗲 𝗥𝗲𝘀𝘁𝗿𝗮𝗶𝗻𝘁 𝗗𝗲𝗮𝘁𝗵𝘀
𝗪𝗵𝗮𝘁 𝗘𝘃𝗲𝗿𝘆 𝗢𝗳𝗳𝗶𝗰𝗲𝗿 𝗡𝗲𝗲𝗱𝘀 𝗧𝗼 𝗞𝗻𝗼𝘄

Join the live webinar | Learn the science, save lives.

🚨 𝗟𝗲𝗮𝗿𝗻 𝘄𝗵𝘆 𝗮 𝗿𝗲𝘀𝘁𝗿𝗮𝗶𝗻𝘁 𝘁𝗲𝗰𝗵𝗻𝗶𝗾𝘂𝗲 𝗰𝗮𝗻 𝘁𝘂𝗿𝗻 𝗳𝗮𝘁𝗮𝗹 𝗶𝗻 𝗺𝗶𝗻𝘂𝘁𝗲𝘀?
And — yes, the science proves it.

𝗝𝗼𝗶𝗻 𝗚𝗧𝗗 𝗦𝗰𝗶𝗲𝗻𝘁𝗶𝗳𝗶𝗰’𝘀 𝗹𝗶𝘃𝗲 𝘄𝗲𝗯𝗶𝗻𝗮𝗿: 𝗧𝗵𝗲 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗼𝗳 𝗣𝗿𝗼𝗻𝗲 𝗥𝗲𝘀𝘁𝗿𝗮𝗶𝗻𝘁 𝗗𝗲𝗮𝘁𝗵𝘀 and learn the biomechanics and physiology that can silently push a restrained subject toward 𝗰𝗮𝗿𝗱𝗶𝗮𝗰 𝗮𝗿𝗿𝗲𝘀𝘁.

✅ How respiration changes in prone positioning

✅ The link between CO₂ buildup and metabolic acidosis

✅ 7 critical risk factors every officer should know

✅ How restraint techniques influence survival

Led by Dr. Geoffrey Desmoulin, PhD RKin PLEng, forensic biomechanics expert.

📅 On June 11th, 2025,
🕒 1.5 hours live
🎓 Earn professional credit + certificate

👉 Reserve your spot: https://us02web.zoom.us/webinar/register/WN_Kikj5tDYQ_2VjD0KA-i3pw #/registration
Also available through our partners at Policetraining.net.

GTD Scientific Presents: The Science of Prone Restraint Deaths Join us for a vital live webinar exploring the physiology and biomechanics behind prone restraint-related deaths. Understand the science to shape safer, evidence-based custody practices. In this 1.5-hour session, you will: • Learn upri...

05/26/2025

Americans and Canadians have long stood side by side. Today, we remember those who never came home.

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05/26/2025

𝗜𝗻𝗷𝘂𝗿𝘆 𝗰𝗮𝘂𝘀𝗮𝘁𝗶𝗼𝗻 𝗶𝘀𝗻’𝘁 𝗴𝘂𝗲𝘀𝘀𝘄𝗼𝗿𝗸, 𝗶𝘁’𝘀 𝗮 𝘀𝗰𝗶𝗲𝗻𝗰𝗲.

By identifying the location, direction, and magnitude of load, we can trace how an injury occurred with precision. This approach helps clarify disputed events and supports objective analysis in high-stakes investigations.

Watch Geoffrey Thor Desmoulin, Ph.D., R.Kin., P.L.Eng. explain how biomechanics reveals the cause behind the injury.

Injury details can be overlooked, but three key elements can help determine what really happened in an incident. Here is why injury causation analysis matter...

05/21/2025

𝗖𝗼𝘂𝗹𝗱 𝗮 𝗳𝗼𝗼𝘁 𝗶𝗻𝗷𝘂𝗿𝘆 𝗿𝗲𝗮𝗹𝗹𝘆 𝗵𝗮𝗽𝗽𝗲𝗻 𝘁𝗵𝗲 𝘄𝗮𝘆 𝗶𝘁 𝘄𝗮𝘀 𝗰𝗹𝗮𝗶𝗺𝗲𝗱?

In this magazine article, we dive into how we reconstructed a reported foot injury using biomechanical testing and forensic analysis to evaluate whether the forces involved were consistent with the claimed outcome.

Watch Geoffrey Thor Desmoulin, Ph.D., R.Kin., P.L.Eng. explain how data meets real-world testing to uncover the truth from heel to… toe! Don't forget to read the magazine article from 𝘉𝘊 𝘗𝘢𝘳𝘢𝘭𝘦𝘨𝘢𝘭 𝘈𝘴𝘴𝘰𝘤𝘪𝘢𝘵𝘪𝘰𝘯 𝘗𝘳𝘦𝘴𝘴 here:
https://gtdscientific.com/blog/footprint-for-avoiding-injury/

Watch the video on our YouTube channel:
https://youtu.be/H7TbAVjqHz0?si=NB2PT6yWqPgd7wMz

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In this article, we discuss why the current impact protocol for safety boots falls short in assessing injury risk. A better approach is needed to ensure real...

05/19/2025

𝗧𝗵𝗲 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗼𝗳 𝗣𝗿𝗼𝗻𝗲 𝗥𝗲𝘀𝘁𝗿𝗮𝗶𝗻𝘁 𝗗𝗲𝗮𝘁𝗵𝘀

Join the live webinar | Learn the science, save lives.

🚨 𝗟𝗲𝗮𝗿𝗻 𝘄𝗵𝘆 𝗮 𝗿𝗲𝘀𝘁𝗿𝗮𝗶𝗻𝘁 𝘁𝗲𝗰𝗵𝗻𝗶𝗾𝘂𝗲 𝗰𝗮𝗻 𝘁𝘂𝗿𝗻 𝗳𝗮𝘁𝗮𝗹 𝗶𝗻 𝗺𝗶𝗻𝘂𝘁𝗲𝘀?
And — yes, the science proves it.

𝗝𝗼𝗶𝗻 𝗚𝗧𝗗 𝗦𝗰𝗶𝗲𝗻𝘁𝗶𝗳𝗶𝗰’𝘀 𝗹𝗶𝘃𝗲 𝘄𝗲𝗯𝗶𝗻𝗮𝗿: 𝗧𝗵𝗲 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗼𝗳 𝗣𝗿𝗼𝗻𝗲 𝗥𝗲𝘀𝘁𝗿𝗮𝗶𝗻𝘁 𝗗𝗲𝗮𝘁𝗵𝘀 and learn the biomechanics and physiology that can silently push a restrained subject toward 𝗰𝗮𝗿𝗱𝗶𝗮𝗰 𝗮𝗿𝗿𝗲𝘀𝘁.

✅ How respiration changes in prone positioning

✅ The link between CO₂ buildup and metabolic acidosis

✅ 7 critical risk factors every officer should know

✅ How restraint techniques influence survival

Led by Dr. Geoffrey Thor Desmoulin, forensic biomechanics expert.

📅 On June 11th, 202,
🕒 1.5 hours live
🎓 Earn professional credit + certificate

👉 Reserve your spot: https://us02web.zoom.us/webinar/register/WN_Kikj5tDYQ_2VjD0KA-i3pw #/registration
* Also available through our partners at Policetraining.net *

05/15/2025

𝗟𝗼𝘄-𝗹𝗶𝗴𝗵𝘁 𝘃𝗶𝗱𝗲𝗼 𝗰𝗮𝗻 𝗰𝗼𝗻𝗰𝗲𝗮𝗹 𝘁𝗵𝗲 𝘁𝗿𝘂𝘁𝗵 𝗳𝗿𝗼𝗺 𝘁𝗵𝗲 𝗻𝗮𝗸𝗲𝗱 𝗲𝘆𝗲, 𝗯𝘂𝘁 𝗻𝗼𝘁 𝗳𝗿𝗼𝗺 𝘀𝗰𝗶𝗲𝗻𝗰𝗲.

While investigating this shooting, we used frame averaging and machine vision to extract a clearer silhouette of the individual involved. These techniques allowed us to overcome visual noise and poor lighting, revealing a more accurate visual account of the scene.

Watch Geoffrey Thor Desmoulin, Ph.D., R.Kin., P.L.Eng. explain how advanced image processing brought clarity to a critical moment.

Find our press articles on this technique:
https://gtdscientific.com/blog/the-shape-of-intention/
https://gtdscientific.com/blog/the-shape-of-intention-by-geoffrey-t-desmoulin/

This case study has also been submitted for scientific publication!

In this real case, we used machine vision to compare distances, test shapes, and analyze postures even in low light. Our algorithm-supported approach helped ...

05/09/2025

Thank you to all the incredible moms who show up with strength, compassion, and endless love. We honor you today and every day. Happy Mother’s Day!

04/17/2025

Investigating incidents of violence doesn’t always revolve around catastrophic injuries. Sometimes, understanding the incident requires finding meaning in skin bruising.

Watch Geoffrey T. Desmoulin, Ph.D., R.Kin., P.L.Eng. discuss how early research can still be used today to understand blunt weapon impacts and their resulting injuries.

For more insight into this topic, read the full article: https://gtdscientific.com/blog/method-to-investigate-contusion-mechanics-in-living-humans/

https://youtu.be/I9gZM94sx8I?si=hVs2gMsTMLjwovDp

Understanding how contusions form is crucial for forensic applications. At GTD Scientific, we built a drop tower to analyze the engineering forces behind inj...

04/01/2025

Are you interested in how injury analysis can enhance forensic investigations?

Join us LIVE for the Science of Violence®: Injury Analysis 4Forensics webinar, where Geoffrey T. Desmoulin, Ph.D., R.Kin., P.L.Eng. will break down how injuries relate to object contact and provide practical tools for forensic casework.

This 1.5-hour webinar will cover key techniques to interpret injury literature, quantify injuries in investigations (no math required!), and apply GTD Scientific’s exclusive pre-programmed EXCEL tool to streamline your analysis.

Don’t miss this opportunity to gain advanced insights and earn professional development credits.

📅 April 9, 2025 | ⏰ 10-11:30 AM (PT) Register now to secure your spot.

https://us02web.zoom.us/webinar/register/WN_29f1huQ5RQWigWqHaG6PwQ #/registration

03/24/2025

03/20/2025

Nowruz, meaning 'New Day,' celebrates the Persian New Year and the arrival of spring. It symbolizes renewal, hope, and new beginnings, embodying a rich cultural heritage that emphasizes unity, family, and the cyclical nature of life.

Each element holds significance:

1. Haft Seen: A tabletop arrangement featuring seven symbolic items that represent aspects such as health, prosperity, and abundance.

2. Sabzeh: Sprouted wheat or lentils, signifying rebirth and growth.

3. Samanu: A sweet pudding made from wheat germ, symbolizing affluence and fertility.

4. Senjed: Dried oleaster fruit, representing love and compassion.

5. Seer: Garlic, represents medicine and good health.

6. Seeb: An apple, symbolizing beauty and health.

7. Somāq: Sumac berries, symbolizing the sunrise and the triumph of good over evil.

Happy Nowruz!