expert specialist

Captain Mark S. Poster (Boat Accident Reconstruction/Boat Safety Expert Witness)

California, USA

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(Boat Accident Reconstruction/Boat Safety Expert Background Info Summary)

Captain Mark S. Poster is a Boat Accident Reconstruction/Boat Safety Expert Witness who has been employed in the boating industry since 1985. He was the Lake Operations Supervisor for the Big Bear Lake Water District from 1996 to 2002. He was responsible for conducting incident investigations, recreation boating safety, enforcing boat laws, marina operations, in addition to many other duties.

Currently, Captain Poster is a Self Employed Boating Safety Consultant where he has performed vessel collision analysis and accident investigation and reconstruction. He has done about 100 boat crash accident reconstructions and thousands of cases. He has investigated accidents with single and multiple fatalities; collisions; sinkings; and operating under the influence.


(Boat Accident Reconstruction/Boat Safety Expert Bullet Points of Interest)

  • Instructor “Boating Safety Occupations” California Department of Boating and Waterways (DBW)/Peace Officers Standards & Training (POST) – 3 years
  • American Red Cross – Water Safety Instructor, Lifeguard, CPR, AED, First Aid
  • DBW/CBSOA Open Water Rescue & Enforcement Master’s Certificate
  • Consultant/Trainer – Spring Valley Lake Patrol, U.S. Adaptive Recreation Ctr.
  • CBSOA – Spark Plug Award Recipient (1998)
  • “Best Instructor in the 11th Coast Guard District” Competition Winner


(Boat Accident Reconstruction/Boat Safety Expert Final Words/Short Summary)

Captain Poster was on the Board of Directors of the California Boating Safety Officers Association for 4 years and served as their President, Vice President, and Southern California Regional Director. He has taught Boating Safety Enforcement for the State of California and Peace Officers Standards (POST). He is US Coast Guard Auxiliary Operations Qualified and has been with them for more than 30 years.

Captain Poster investigated many accidents as a Lake Patrol Officer and Lake Operations Supervisor at Big Bear Lake. He was responsible for all the lake operations including enforcing boating laws, conducting accident & incident investigations, review & revision of local boating laws & department manuals, etc. He is a member of the International Association of Marine Investigators.

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ID: 9670
Published: January 4, 2023
Views: 623
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