About CIS - Collision Investigation Services

Servicing the Gold Coast, Brisbane and QLD
Jobs completed interstate and overseas are subject to travel costs

Patrick (Pat) McDonald - Principal Investigator

CIS auto crash analysis and expert testimony

CIS for experienced expert testimony and third party report examination.

Collision Investigation Services or CIS is a car crash investigation company based on the Gold Coast QLD and mainly servicing the Gold Coast, Brisbane and Nth NSW.
We do service other states but travel costs including accommodation are billed to the client.

Principal Patrick (Pat) McDonald has been involved in investigating motor vehicle and workplace accidents since 2000. These have ranged from soft tissue injury to fatalities.

CIS offers an independent analysis of collisions involving motor cars, motor cycles and pedestrians as well as the thorough independent investigation of workplace accidents.

CIS's primary clients are insurance companies and law firms. They are provided with professional opinions, detailed reports and quality evidence in a timely manner.

CIS investigations are independent, thorough and focused while remaining conscious of the sensitivity and need for discretion during investigations.


Experience and Qualifications

2 frame animation showing 3D representation of a car colliding with a pedestrian

Collisions involving cars and pedestrians usually result in serious injury or death

Pat McDonald is well qualified in scientific and investigative techniques and applies industry best practice in all motor vehicle crash investigations.

Pat McDonald has been directly involved in the investigation of serious injury and fatal motor vehicle collisions since 2000.


Pat is currently the QLD director of ASPACI (Australia & South Pacific Association of Collision Investigators) which is the crash investigation industry's professional association.


Relevant qualifications achieved or currently studying.

Pat has completed courses covering topics such as:

  • Speed estimates from skid to stop collisions
  • Momentum based intersection type collisions
  • Rear end and head on type collisions and speed estimations from yaw marks
  • Vehicle’s becoming airborne and Crash Data Retrieval (CDR) analysis
  • Other areas include dynamics of pedestrian collisions and determination of speeds from pedestrian impacts
  • Vehicle condition and inspection
  • Globe and filament analysis
  • Tyre mark identification
  • Determination of drag factors for vehicles and roadway
  • Total Survey Station as well as crash investigation photography
  • See IPTM for further information regarding some of the courses above

For accident reconstruction he uses IMS 360 and has experience with Studio Max and Cadzone software for production of either 2D or 3D representations of a collision.

For further information or a more detailed CV please contact CIS on 0405 149 064 or email

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