The Technician Dojo
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We are proud to serve as the National Headquarters of the Law Enforcement Tactical Training Institute (Ohio Peace Officer Training Academy recognized). Many of our students, past and present, have been Law Enforcement Officers, Corrections Officers and/or Security Personnel. ​We take pride in helping those who serve our community do so more safely with the tools they need on the job and bring that same level of dedication and quality to all of our classes.

​*In compliance with state law, all business licenses (as well as martial arts credentials) are prominently displayed in our school for anyone who wishes to verify them.
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L.E.T.T.I

LAST ENCOUNTER TACTICAL TRAINING INSTITUE SYSTEMS


"SURVIVAL SKILLS NEEDED FOR TODAY, TOMORROW, AND THE FUTURE"

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  •  Founder & Ohio Commander Steven Hatfield – LETTI Academy
Commander Steven Hatfield is the founder and lead instructor   of the Last Encounter Tactical Training Institute (LETTI). With over 20 years of experience in public safety and the personal   protection field, Mr. Hatfield has dedicated his career to   equipping individuals with the skills necessary to survive real-   world violent encounters. Specializing in both defensive tactics and firearms instruction, he offers training that spans from beginner to advanced levels, with a focus on practical application for public safety professionals, private security, and responsible civilians. LETTI was created as a direct response to watered-down training programs, offering no fluff—just the gritty, reality-based instruction needed to stay alive when seconds count. Commander Hatfield’s approach is rooted in real experience, discipline, and a commitment to delivering a class above the standard.



SKILLS LEARNED

Firearms Training & Concealed Carry Certification: 
Learn. Train. Qualify. This is more than just range time. This course arms you with knowledge, confidence, and skills to safely and legally carry a firearm. Whether you're new to guns or brushing up your skills, you'll leave this class certified and eligible for your Concealed Carry Permit. Safety first. Precision always.

Defensive Tactics:
When hands are all, you have, make them count. This course teaches real-world hand-to-hand defense for survival situations. Perfect for civilians, security, or law enforcement. You'll learn situational awareness, escapes, holds, takedowns, and defense against common attacks. Fight smart—survive smarter.

Chemical Spray (OC) Certification:
One spray can save a life. Learn how to deploy pepper spray responsibly and effectively. This class covers laws, safety, effects, and decontamination procedures. Whether for personal defense or duty use, get trained right and be ready.

Subject Control & Handcuffing:
Control is protection. This course trains you in safe, lawful, and effective subject restraint techniques. Learn how to apply and remove cuffs under pressure, control combative individuals, and reduce liability while increasing safety.

TASER Certification:
Stun. Control. Contain. Understand how to use one of the most effective non-lethal tools on the market. Learn deployment techniques, safety concerns, legal use-of-force parameters, and hands-on scenarios. Certification available upon successful completion.

Advanced CPR / AED / First Aid:
The life you save could be someone you love. Be the help before help arrives. This class goes beyond basics—covering adult, child, and infant CPR, AED use, trauma response, and emergency first aid. Ideal for civilians, workplace safety, or first responders.

Stop the Bleed:
Control the chaos. Save a life. Uncontrolled bleeding is the #1 cause of preventable death after injury. This essential course teaches you how to recognize life-threatening bleeding and take immediate action using pressure, wound packing, and tourniquets. Fast, focused, and potentially lifesaving.
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The Technician Dojo provides martial arts, Karate, Judo, Jiu Jitsu and practical self-defense training in South Columbus, serving students from Columbus, Grove City, Obetz, German Village, Reynoldsburg and surrounding Central Ohio communities.​
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  • Home
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    • Karate
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