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Lethal Weapon Lectures – Collision Reconstruction DVD Library

$399.00 $299.00

A series of six DVDs of the Lethal Weapon – DWI Homicide lectures delivered at the National Advocacy Center.  Ideal for those who wish to refresh their knowledge of collision reconstruction principles and the presentation of expert testimony at trial.  Titles include:    Physics Concepts, Time-Distance-Speed Analyses, Speed from Tire Mark Evidence, Drag Factor, Multiple Event Collisions, and Speed from Yaw Mark Evidence.

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A series of six DVDs of the Lethal Weapon – DWI Homicide lectures delivered at the National Advocacy Center. Ideal for those who wish to refresh their knowledge of collision reconstruction principles and the presentation of expert testimony at trial. Titles include: Physics Concepts, Time-Distance-Speed Analyses, Speed from Tire Mark Evidence, Drag Factor, Multiple Event Collisions, and Speed from Yaw Mark Evidence.

 
Volume I
Physics Concepts

Running Time: 78 minutesChapters:

  1. Communicating with experts
  2. Center of mass
  3. Newton’s Laws
  4. Lamp Analysis
  5. Analyzing the statement
  6. Demonstrating collisions
  7. Speed and velocity
  8. Air bag defense
  9. Head strike speed estimate
Volume II
Time-Distance-Speed

Running time: 82 minutes

Chapters:

  1. Time-Distance-Speed
  2. Basic equations
  3. Perception-reaction time
  4. Reaction distance
  5. Use of assumptions
  6. PRT used to estimate speed
  7. Emerging danger defense
  8. Sight distance
  9. Acceleration in intersection
  10. Analyzing a video animation
  11. Foundation for TDS
  12. Cross examination
Volume III
Speed from Skid Marks

Running Time: 113 minutesChapters:

  1. Introduction
  2. Speed equation
  3. Validation studies
  4. Determining skid distance
  5. Speed calculations
  6. Minimum speed estimate
  7. ABS effects
  8. Brake efficiency
  9. Pedestrian slide to stop
  10. Braking distance
  11. Demonstrative evidence
Volume IV
Drag Factor

Running time: 93 minutes

Chapters:

  1. General comments
  2. Dependence on speed
  3. ABS drag factor
  4. Drag sleds
  5. Attacks on the drag sled
  6. Skid tests
  7. Accelerometer use
  8. Misuse of the accelerometer
  9. Low drag factor in chart
  10. Drag factor during rollover
  11. Drag factor during rotation
  12. Validation studies
Volume V
Conservation of Energy

Running Time: 102 minutesChapters:

  1. Energy definition
  2. Conservation of energy
  3. Combined speeds equation/li>
  4. Combined speeds testimony
  5. Speed at intermediate point
  6. MI v. Rowland case study
  7. Incorrect applications
  8. Sample problems
  9. Crush energy
  10. Multiple event collisions
Volume VI
Speed from Yaw Marks

Running time: 58 minutes

Chapters:

  1. Introduction
  2. Yaw mark measurement
  3. Radius calculation
  4. Speed equation
  5. Validation studies
  6. Caveats and attacks
  7. Yaw as an energy event
  8. Speed in a prior curve

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