Mj Investigations, LLC: Outstanding Experience

Mj Investigations, LLC was founded in 2008 by Michael Miranda and offers over 35 years of training and experience in  the field of accident investigation and reconstructions. Serving over 28 years as a Colorado State Patrol Trooper, Michael attained Level IV accident reconstruction status and became ACTAR accredited (ACTAR #1084).

After retiring from the Colorado State Patrol, Michael was asked  to join the 4th Judicial District Attorney's Office as a Criminal Investigator, serving as the Investigator for the Vehicular Homicide/Vehicular Assault Team.

Mj Investigations, LLC follows four main principles, which are the foundation and key to our success:


  1. Independence
  2. Objectivity
  3. Competence
  4. Confidentiality


Find out how these core values have helped hundreds of other clients achieve lasting success for their businesses.

Michael Miranda, LPI, ACTAR #1084
Owner/Accident Reconstructionist
(719) 694-6343
Michael Miranda is a retired Trooper serving over
28 years in the Colorado State Patrol and attained
ACTAR accreditation in 2000. After retirement, he was a Criminal Investigator for the 4th Judicial District Attorney's Office and was assigned as the Investigator for the Vehicular Homicide Response Team. Michael is a Colorado Licensed Private Investigator.
Jonette Miranda, LPI, CSMIE
Jonette Miranda joined Mj Investigations as a Colorado Licensed Private Investigator and is a Certified Social Media Intelligence Expert (CSMIE).
She worked several years for a local criminal defense attorney as an office manager and in-house investigator. Jonette has extensive experience in background investigations, locates, open source internet searches and social media investigations.
Director of Security Services
Liberty (Libby) has been selected as the Director of Security for Mj Investigations. Bringing years of experience in observation and surveillance to Mj Investigations, Libby will provide Security Services to the company offices and during on scene investigations.

Our Services

Mj Investigations, LLC offers comprehensive and detailed traffic accident reconstruction services and testimony. Mj Investigations, LLC also offers a full line of private investigation and attorney services.


Mj Investigations. Where "Professional Investigations are the Key".


See an overview of our services.


Contact Us Today!

To schedule an appointment or find out more about the services we offer, please call  our Colorado Office at (719) 694-6343 or our Maine Office at (207) 495-3750. You can also send us an email at info@mji.expert or use our contact form.

News & Events

Mj Investigations releases second edition of our popular book; "Accident Investigations for the Private Investigator and Attorneys". Order your copy now.

MjI opens Maine office serving the New England states.

Our latest article on PINow has been released. "Factors in Traffic Accident Investigations" can be viewed at: https://www.pinow.com/articles/2516/factors-in-traffic-accident-investigations

Check out our articles for PI Now. 



Our second article has been posted on PI Now. https://www.pinow.com/articles/2349/accident-investigations-vehicle-lamp-examinations


View our latest article on tire marks and their use in accident investigations at: https://www.pinow.com/articles/2399/tire-marks-their-role-in-accident-reconstruction-investigations

Our latest article on PI Now.


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