TIPS FOR THE
ACCIDENT INVESTIGATOR
SPONSORED BY DU MÉTIER
OBSERVATIONS AT
THE ACCIDENT SCENE
It is of the utmost
importance that proper observations are due on the scene, before
and during the taking of measurements.Proper notes must be made
on the rough sketch of all observations made at the scene.
1. TARRED
ROAD/CEMENT ROAD
- -Speed limit
- -Public or private
road
- -Soft or hard
- -The width of the
road: measure positions of white lines, barrier
lines and indicating arrows on the road surface of the
road, ie. Is it smooth or rough; good or poor; new or old
tar
- -presence of potholes,
partial disintegration of and humps on the surface;
- -the slope of the
road;
- -the camber of the
road;
- -the grade of the
road;
- -was the road dry or
wet?
- -was sand or loose
stones, washed, blown or driven onto the surface of the
road; or has it been accumulated by tyre action.
- -are the edges of the
tarmac uneven or crumbling
- -are the edges of the
tarmac higher than the adjacent gravel steps and what is
the difference in height;
- -are the edges of the
tarmac bordered by curbing cement strips, drainage or
holes?
- -are the adjacent
edges bordered by gravel portions on which robots and
other objects appear; and
- -tyre-marks,
skid-marks, scratch-marks, blood stains, etc.
- (Measure tyre
marks)
- -are there any
crash barriers on the side of the road
- -are there any
embankments next to the side of the road
- -are there any cat
eyes on the road eg. Square, rounded colour
- -are there any road
signs
2. GRAVEL ROAD
- -Speed limit
- -entire width of the
graded road
- -entire width which
can be travelled on;
- -type colour and
nature of the material of which the road is made eg.
Soft, hard, sandy, white gravel, pot-clay etc.
- -presence of potholes,
corrugation, loose sand, gravel or stones, etc;
- -was the road wet or
dry? And
- -was the road graded
recently?
- -is the road in a
built up area?
- -do animals have
access to the road eg. Broken fences.
3. GRAVEL
PORTIONS AND SIDEWALKS NEXT TO THE ROAD
- -Width of gravel
portions and sidewalks;
- -presence of culverts
and gutters;
- -traffic signs,
electrical and telephone poles, trees, shrubs, grass,
buildings and hedges;
- -how far are the
nearest fences from edges of the road?
- -are gravel strips
passable?
- -if the vehicle must
swerve, can it travel on the pavements, gravel strips and
grass portions?
- -are there any
turn-off roads, junctions, footpaths, etc.
-
4. STREET
LIGHTNING
- -Day or night
- -exact position of all
street lights;
- -were the street
lights switched on?
- -are there any
unilluminated areas between the street lights; and
- -are there any other
lights in the vicinity which illuminate the area, eg.
Illuminated shop windows, etc.
- -the colour of the
lights eg. Yellow, white etc.
5. CLIMATIC
CONDITIONS
- -Did it rain recently;
- -was it raining at the
time of the accident?
- -was the road wet?
- -misty weather, snow
or hail;
- -was there any wind
storms or gusty wind?
- -the position of the
sun, especially at sunrise or sunset.
- -Could the driver have
been blinded by the sun? And
- -the position of the
moon, eg. Was it full moon
- -was it a very warm or
very cold day (use of aircon or heater).
6. VISIBILITY
- -How far could the
driver see the road in front?
- -was his view
obstructed by curves, trees, bushes, advertisement signs
etc.
- -are there any
obstruction such as buildings, hedges, etc. at
intersections?
- -were road signs
clearly visible or were they covered with mud or dust; if
so, take a photo.
- -was his view
obstructed by smoke, dust, rain or mist or the lights of
approaching traffic?
7. VEHICLES
- -Type of vehicle eg.
Passenger, goods, emergency, combi, LDV, truck, tractor
etc.
- -Check if keys are in
ignition or wires pulled out (possible stolen vehicle).
- -Registration number,
fleet number SAPS number etc.
- -Make and model of
vehicle
- -colour of the
vehicles
- -exact description of
damages to vehicles
- -other previous
damages to vehicles
- -attempt to determine
from which direction the damage was caused
- -try to ascertain what
caused the damage
- -the condition of the
tyres, eg. Worn, burst or cut tyres (if possible take
tyre pressure).
- -were the tyres
damaged before or during the accident, are all tyres the
same size, tyre pattern.
- -are the head lights,
dim lights, parking lights and stop lights in working
condition
- -in the case of heavy
vehicles, are the compulsory chevrons at the prescribed
position and are they clean and visible
- -are the foot-and hand
brakes in good working condition
- -is the hooter in
working condition
- -is the vehicle a left
or right hand drive
- -condition of wind
screen and wind screen wipers
- -what are the
kilometre readings of the vehicles
- -general condition of
the interior and exterior of the vehicle
- -are there any loos
objects, such as cool drink bottles and empty beer tins,
etc. in the vehicle
- -length and width of
vehicle (measure)
- -height of the cab and
coach-work, especially in the case of lorries
- -how far does the
carriage overlap the wheels
- -is the vehicle fitted
with a rear-view mirror and does it diminish the image of
vehicles approaching
- -are there any objects
at the rear window obstructing the rear view
- -are there any objects
hanging from the rear view mirror that could district the
driver's attention
- -are seatbelts fitted
and were they warn a the time of the accident
- -were the aircon,
heater, radio etc. on at the time of the accident
- -position of gearlever
(manual or automatic) disabled persons use
8. PEDESTRIAN
(VICTIM)
- -What was the
condition of the pedestrian (sober, smelling of alcohol
etc)
- -was he dressed in
dark or light coloured clothes, especially at night (or
reflective)
- -was the victim
clearly visible or was his visibility limited by any
object and
- -distance to and
position of the victim when he became visible for the
first time
- -Position: on
roadway, sidewalk, verge
- -Manoeuvre:
Facing traffic, back to traffic, crossing road
- -Action:
walking, running playing etc.
9. CYCLES
- -Is cycle fitted with
mudguards
- -is cycle fitted with
front and rear reflectors
- -is cycle fitted with
front and rear lights
- -are the breaks in
working condition
- -damage to cycle
- -type, mountain bike,
for male or female
- -size of wheels
- -was the cyclist
wearing visible clothing and a helmet
-
10. MOTOR
CYCLES
- -Size of cycle, eg.
Tri-cycle, quadra cycle, 125 cc and under above 125 cc
- -was driver
protectively dressed
- -was a helmet warn
(open or full face) was it fastened correctly
- -was he carrying any
load
- -was the lights and
reflectors in working order
11. HEAVY DUTY
TRUCKS
- -Are there adequately
side visibility eg. Reflectors if a truck had to turn and
are they clean, bent inside or outside.
- -Are there a tacho
graph fitted / If possible remove tacho and on rear sign
place date and time
- -Type of load on
vehicle
- -was any load hanging
over / was there a spillage
- -what was used to tie
down the load eg. Chain, straps, sail, etc.
- -temperature of the
brake drums on each wheel of each vehicle and heat of
tyres when touched by hand (very hot, cold)
- This will tell if the
brakes were applied, balanced. The heat of the tyre
indicates to tyre pressure difference.
THE DIFFERENT
SECTIONS AND CASES INVOLVING MOTOR VEHICLE COLLISION : ROAD
TRAFFIC ACT 29/1989
- Culpable Homicide
(where a person is killed)
- Reckless or Negligent
driving c/s 120(1) serious injuries, Ac 29/1989 - state
vehicles, traffic violation, continue to driving under
the influence.
- C/s 118(1)A -Failed to
stop vehicle immediately after accident.
- C/s 118(1)B -Failed to
ascertain extent of injuries after accident.
- C/s 118(1)C -Failed to
render assistance to injured person after accident.
- C/s 118(1)E -Failed to
give his name and address at scene of accident.
- C/s 118(1)F -Failed to
report accident within 24 hours.
- C/s 118(1)G -Took
liquor after accident.
- C/s118(2) -Removed
vehicle from scene of accident where person was killed or
injured.
- C/s118(2) -Failed to
mark position of vehicle before removing it from scene of
accident where person was killed or injured.
- C/s121 -Drove motor
vehicle inconsiderately AG R500-00
- C/s122(1) -Drove
vehicle under the influence of liquor.
- C/s122(2) -Drove
vehicle with an excessive amount of alcohol in blood
- C/s14(2) -Used a motor
vehicle which is not registered and licenced.
- C/s15 -Drove a motor
vehicle without a licence.
- C/s84(1) -Failed to
comply with direction of road traffic sign
- C/s125 -Possession of
false drivers licence
- C/s117(2)(A) -On foot
on freeway
- C/s251 -Drove m/v
without PDP
- C/s348(4) -No seatbelt
(failing to wear)
12. ESTABLISHING
THE POINT (AREA) OF IMPACT
- -By accurate
observation at the scene of accident, the point/area of
impact can be established in most instances.
- -This point/area of
impact might differ from the point of impact which was
pointed out by other witnesses.
- -Every alleged
point/area of impact should, however, be indicated on the
sketch plan.
13. CLUES TO
ESTABLISH THE POINT/AREA OF IMPACT
- -Tyre marks which are
running straight up to a point, and then stop suddenly or
swerve at a sharp angle
- -pieces of broken
glass at the scene of the accident
- -mud and dust on the
road surface coming from the undercarriages of vehicle
- -scratch or scrape
marks on the surface of the road made by metal or other
objects
- -bits of bone, blood
and hair adhering to the surface of the road
- -damage to vehicles
- -personal property of
pedestrian, cyclist or motorcyclist
- -oil and water stains
on the surface of the road, and
- -place and position in
which vehicles came to a stand still
- -measure from area of
impact to sides of road, measure to all vehicles.
14. OBSERVATIONS
OF A SUSPECTED DRUNKEN DRIVER
- -Attitude: Excited -
hilarious - talkative - carefree - sleepy - profanity -
combative - indifferent - insulting - cocky -
co-operative - polite
- -Breath: (Odour of
alcoholic beverage) strongly - moderate - faint - none
- -Unusual
- Actions: Hiccoughing -
belching - vomiting - fighting - crying - laughing
- -Speech: Not
understandable - mumbled - slurred - mush mounted -
confused - thick tongued - stuttering - accent, fair/good
- -Eyes: Red? Very -
moderate - slightly
- Check for signs or
complaints of injury
- -Balance: Falling -
need support - wobbling - swaying - unsure - sure
- -Walking: Falling -
staggering - stumbling - swaying - unsure - sure
- -Observers
- Opinion: Effects of
alcohol - heavily - obvious - moderate - slight - none
- -Ability to
- Drive: Fit - unfit
Important
measurements to be taken
- Length and
width of all vehicles
- Entire width
of road
- Edge of road
to yellow lines
- Yellow line to
centre of road
- Distance
between white centre lines
- Length of skid
marks
- Distance
between all vehicles
- POI to
vehicles
- Fix point to
POI vehicles
- Width of skid
mark
Where Ped are
involved
- POI to where
Ped landed
- Distance from
m/v to Ped
- Position of
m/v, Ped etc to edge of road
- POI to side of
road
- POI to middle
of road
- Width of side
walks
- Width of
centre medians
- Distance to
blind rises
Points to
remember in connection with drunken driving
- 1. Time of
offence start of 2 hour period
- 2. Time of
arrest
- 3. Time scene
left with suspect
- 4. Time and
place of arrival where District Surgeon and sister are
requested to take a blood sample
- 5. Time
examination starts
- 6. Time
examination ends
- 7. From where
was blood drawn eg. Left
- 8. Outer seal
number
- 9. Inner seal
number
- 10. Name of
person taken sample
- 11. Alcometer
number
- 12. Alcometer
reading
- 13. SAPS 13
number for handling in sample.
Forms required
for D/S
- SAPS 308A
request form
- GW7154 Doctors
report form
- Station and
CAS number
- Blood sample
contained (not damaged)
Details that
need to be obtained at an accident from drivers
- 1. Name and
surname and ID-number
- 2. Race and
age and sex
- 3. Home and
work physical addresses and tel.number
- 4. Cell number
if available
- 5. License
code and date of issue
- 6. Injuries
- 7. Ambulance
number and hospital
- 8. Breakdown
and address
- 9. Kilometre
reading
- 10. If vehicle
has other number eg. SAPS number etc.
- 11. Passengers
names and surnames and addresses and tel.number
For SAPS
Vehicles
- 12. Drivers
force number and rank
- 13. On or off
duty
- 14. Branch or
unit
- 15. Dress
- 16. Made and
admissions of liability
- 17. Exact
location of accident scene.
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