Our Focus Areas
M&M Security Services, Inc. provides four core focus areas. Select any area to learn more.
Collision Reconstruction
Evidence-based crash analysis, including speed analysis, crush analysis, time-and-distance analysis, expert reports and expert testimony.
Crash Data Retrieval (EDR/ACM)
EDR and ACM data retrieval from supported vehicles, including manufacturer-specific systems, supported dashcam video and 3D vehicle scans.
Heavy Vehicle Data Retrieval
ECM data, ABS module data, supported dashcam video, brake examinations, photographs, video and 3D documentation for commercial trucks.
Crash Scene Investigation
Scene photography, drone documentation, traffic-signal timing, witness canvassing, CAD diagrams and 3D scene documentation.
Texas Collision Reconstruction
Serving attorneys, insurers and litigation teams across Texas — Dallas–Fort Worth, Houston, Austin, San Antonio and El Paso. Based in Texas, serving clients nationwide.
Collision Reconstruction Resources
Professional educational resources on collision reconstruction, EDR and crash data retrieval, evidence preservation and heavy-vehicle data — written for attorneys and litigation professionals.
Professional Credentials
A documented record of continuous professional practice since 1985.
SINCE 1985
Continuous professional practice
STATE & FEDERAL
Courts with documented testimony
LICENSE #A04473
Texas professional license
EVIDENCE-BASED
Objective forensic analysis
About M&M Security Services, Inc.
M&M Security Services was founded in 1985 by Darrell Joy, a former Texas law-enforcement officer, risk manager, and criminologist. The company has decades of experience providing forensic crash reconstruction, vehicle and scene examinations, electronic data retrieval, expert analysis, and litigation support.
The firm's professional experience includes matters involving plaintiff counsel, defense counsel, insurers, law-enforcement agencies, government entities, businesses and private parties.
Jason "Judd" Joy
President
Leads collision reconstruction assignments, heavy-vehicle evaluations, expert reports, and trial testimony.
Jake Joy
Investigator & Collision Reconstructionist
Supports collision reconstruction, vehicle electronic-data retrieval, heavy-vehicle inspections, crash-scene documentation and 3D mapping and forensics.
How to Engage M&M Security Services
A professional engagement follows a documented process to confirm scope and avoid conflicts.
01
Initial Contact
Contact the office by email or phone to discuss the matter, the vehicles involved, and the questions that need to be answered.
02
Conflict Review
The firm conducts a conflict review before any substantive discussion to confirm there is no conflict with existing or prior engagements.
03
Work Begins
Once the conflict has been cleared, we will begin work immediately.
Disclaimer
The information on this website is provided for general professional and informational purposes. It does not constitute a technical opinion, legal advice, an engagement agreement or a guarantee regarding any matter or outcome. Any professional engagement is subject to conflict review and scope confirmation.