COURSE
CONTENTS
Part I : Introduction to Expert
Investigation
1 Introduction
2 The
Automobile
2.1
Automotive Running Gear
2.1.1 Engine
2.1.2
Transmission
2.1.3 Fuel System
2.1.4 Electrical System (Light
Bulbs)
2.1.5 Steering System
2.1.6 Brakes
2.1.6.1 Drum
Brakes
2.1.6.2 Disc Brakes
2.1.6.3 Brake Systems On
Trucks
2.1.7 Examination Of Truck Brakes
2.1.8 Wheels
2.1.9
Tyres
2.1.9.1 Cornering Forces On Tyres
2.1.9.2 Tyre
Examination
2.1.9.3 Valves
2.1.9.4 External
Inspection
2.1.9.5 Disassembly And Interior Inspection
2.1.9.6
Common Causes Of Tyre Damage
2.1.9.7 Retreading
Problems
2.2 Car Chassis And
Body
2.2.1 The Chassis
3 Accident
Reconstruction
3.1 Basic
Physics
3.1.1 Motion And Momentum
3.1.2
Energy
3.2
Skidmark Analysis
3.2.1 Tyre Prints
3.2.2 Friction
Marks
3.2.2.1 Tyre Skid Marks
3.2.2.2 Tyre Scuff
Marks
3.2.2.2.1 Yaw Marks
3.2.2.2.2 Under-Inflation Or
Overloading Scuffs
3.2.2.2.3 Acceleration Scuffs
3.2.2.2.4
Collision Scuffs
3.2.3 Determinations From Tyre Marks
3.3
Speed From Skid-Marks
3.3.1 Coefficient Of Friction (Method
1)
3.3.2 Coefficient Of Friction (Method 2)
3.3.3 Limitations
Of The Locked Wheel Skid Mark Formula
3.3.3.1 Braking
Efficiency
3.3.3.2 Gradient Of Road
3.3.3.3 Factors Affecting
The Coefficient Of Friction
3.4 Speed From Centrifugal
Marks - Yaw Marks
3.5 Collision Analysis
3.5.1 Symmetrical
Head-Onn Impacts Between Cars
3.5.2 Car - Pedestrian
Collisions
3.5.3 Motorcycle Accidents
3.5.3.1 Speed Lost On
Impact
3.5.3.2 Speed Reduction From Pre-Impact Braking
3.5.3.3
Post Impact Dynamic Analysis Of
Rider
Part II. Basic
Photography
1
Introduction
2 Criminal Procedure
Background
3 Description Of
Photography
4 Light
4.1 Introduction
4.1.1 The Visible
Spectrum
4.1.2 Colour
4.2 Characteristics Of Light
Waves
4.2.1 Transmission
4.2.2 Reflection
4.2.3
Absorption
4.2.4 Bending Or Refraction
5 The Photographic
Process
5.1
Filmspeed
5.1.1 Description:
6 Cameras
6.1 Description
6.2 Types Of
Cameras
6.2.1 35mm And 120mm Cameras
6.2.2 Double Lens
Reflects Cameras
6.2.3 Single Lens Reflects Cameras
6.3 Basic
Parts Of A Camera
6.4 Shutters
6.4.1 Functions Of The
Shutter
6.4.2 Types Of Shutters
6.4.2.1 Between-The-Lens Type
Shutter/Leaf Type Shutter
6.4.2.2 Focal Plane Shutter/Blind Type
Shutter
6.4.2.3 Lenscap Shutter/Lid
Shutter
6.4.3 Shutterspeed Settings
6.4.4
Handspeed Limit:
6.4.5 Time Exposure
6.4.6 Shutterspeed And
Movement
6.5 Diaphragm (Apperture Or Lens Opening)
6.5.1
Functions Of The Diaphragm
6.5.2 The Diaphragm Or Apperture
Settings
6.6 Viewfinder
6.6.1 Distance Meter
6.6.2
Infinity
6.7 Camera Lenses
6.7.1 Description
6.7.2 Camera
Lens Elements
6.7.3 Types Of Lens Elements
6.7.3.1 Converging
Lens Elements (Positive, Spherical Or Convex Lens
elements)
6.7.3.2 Diverging Lens Elements (Negative, Hollow Or
Concave Lens elements)
6.7.4 The Optical Middle
6.7.5 Focal
Length
6.7.6 Types Of Camera Lenses
6.7.6.1 Standard Lenses
(Normal Lenses)
6.7.6.2 Zoom Lenses:
6.7.6.3 Mirror
Lenses
6.7.6.4 Macro Lenses
6.7.6.5 Wide Angle
Lenses
6.7.6.6 Telephoto Lenses
6.7.6.7 Supplementary
Lenses
6.8 Maintenance Of Camera
Lenses
6.9 Focus
7 Depth Of
Field
7.1
Description:
7.2 The Importance Of Depth Of Field
7.3 The
Depth Of Field Zone
7.4 The Quantity Of The Depth Of Field
7.5
Determining The Depth Of Field
7.6 Use Of The Depth Of Field
Scale
8 Optimum
Exposure
8.1
Description:
8.2 Determining The Optimum
Exposure
9 Exposure
Meters
9.1
Description
9.2 General
9.3 Methods To Take Exposure Meter
Readings
9.3.1 Average Brightness Or Reflection Method
9.3.2
The Tilting Method
9.3.3 The Close-Up Method
9.3.4 The
Incident Light Method
9.4 The Use Of A Build-In Exposure Meter To
Determine The Optimum Exposure
10 Speed Ring And Photographic
Calculations
11 Procedure To Take A Photo With
A Camera
12 The Automatic Exposure Settings On A
Camera
12.1
General
12.2 The Automatic Shutter
12.3 The Automatic
Diaphragm
13 Electronic
Flashes
13.1
General
13.2 Procedure To Set A Camera When An Electronic Flash
Is Used:
13.2.1 General
13.2.2 Manual
13.2.3 Auto
13.3
Flash Techniques
13.3.1 Fill-In Flash
13.3.2 Shiny, Wet And
White Subjects
13.3.3 Softening Of The Light Of The
Flash
13.3.4 Reflected Flash (Bounce Flash)
13.3.5 Close-Up
Shots
13.4 Maintenance Of Flashes
14 Actions With
Photographs
14.1 Marking
Of Points On
Photographs
Part III. Drawing Of Plans
(Basic)
1 Introduction
2 The Purpose Of A Plan
3 Terminology
3.1.1
Public Road
3.1.2 Plan
3.1.3 Sketch Plan
3.1.4 According To
Scale
3.1.5 Base Line
3.1.6 Fixed Point
3.1.7 Rectangular
Method
3.1.8 Road Vehicle Collision
3.2 Introduction To Plan
Drawing
3.2.1 Qualities Of A Good Draughtsman
3.3 North
Point
3.3.1 Requirements
3.3.2 Determining The North Point By
Means Of A Watch
3.4 Rough Sketch
3.4.1 Introduction
3.4.2
Requirements Which The Rough Sketch Must Adhere To:
3.5
Requirements For A Plan
3.5.1 Size
3.5.2 Picture
Image
3.5.3 Accuracy
3.5.4 Completeness
3.5.5
Impartiality
3.6 Data On The Plan
3.6.1 Data Which Must Appear
On The Plan
3.6.2 Data Which Must Not Appear On The Plan
3.7
Scale
3.7.1 General
3.7.2 Determination Of Scale
3.7.3
Requirements For A Scale
4 Conventional
Signs
4.1 Conventional
Signs Not To Be Described On A Plan:
4.2 Conventional Signs Are
Described In English As Follow:
5
Measurements
5.1 Why Is
A Method Necessary To Measure A Scene?
5.2 Phases Of Measuring A
Scene:
5.2.1 Safeguarding The Scene And Yourself
5.2.2 Marking
The Positions Of The Vehicles And Other Objects (Points)
5.2.3
Measuring The Road
5.3 Methods Of Measuring:
5.3.1 Rectangular
(Co-Ordinate) Method
5.3.2 Triangular Method
5.4 Measuring A
Straight Road
5.4.1 Determination Of Distances On Completed
Plan
5.5 Measuring Of A Curve (Bend)
5.6 Measuring Of An
Intersection
6 Use Of Various Sizes Rotring
Pens
6.1 Recommended Practical
Application
7 Conventional
Signs
7.1 Key To The
Plan
7.1.1 General
7.1.2 Requirements For A Key To A
Plan
7.1.3 Sequence Of The Key
PART IV. ACCIDENT
INVESTIGATION
1 Introduction
2 Accident Investigation
Procedures
2.1 Report
2.1.1 Approach
2.2
Pre-Investigation
2.2.1 Identify
2.2.2 Safeguard
2.2.2.1
Parking Of Vehicle
2.2.3 Dangerous Goods
2.2.4 Locate
2.3
Scene Investigation
2.3.1 Evidence
2.3.1.1 Indication Of
Points At The Scene
2.3.1.1.1 By Drivers
2.3.1.1.2 By
Witnesses
2.3.1.2 Exhibits
2.3.1.3 Clues
2.3.2
Observation
2.3.2.1 Tarred Road/Cement
2.3.2.2 Gravel
Road
2.3.2.3 General Road/Scene Observations
2.3.2.4 Street
Lighting: (If The Collision Occurred DuringThe Night)
2.3.2.5
Climatic Conditions
2.3.2.6 Visibility
2.3.2.7 Pedestrians
(Victims)
2.3.2.8 Bicycles
2.3.2.9 Motor Cycles
2.3.2.10
Vehicles
2.3.3 Driver
2.3.4 Witness
2.3.5 Rough
Sketch
2.4 Follow-Up
2.4.1 Recovery/Clearance Of
Scene
2.4.2 Officer's Accident Report Form (OAR)
2.4.3 Case
Dockets
2.4.4 Statements
2.4.5 Plan & Photo
Album
3 Drunk
Driving
4 Chain Of
Events
5 Exhibits
6 Resources
7 Heavy/Articulated
Vehicles
7.1 Action List
For Heavy/Articulated Vehicles And Busses:
Part V. Giving Of
Evidence
1 Introduction
1.1 Preparation
1.2 General
Impressions
2 Court
Procedures
2.1 Important
Points
2.2 Inspection In Loco
2.2.1 While Under
Oath
2.2.2 After The Witness Is Excused
2.3 Commission Of
Investigation