Collision Investigation - Advanced

This class is 80 hours in length and expands on the teaching of the Basic course, and provides new material.  Upon successful completion of this course, participants will be able to:

  • Understand advanced vehicle accident concepts of pre and post-accident vehicle speeds and paths
  • Vehicle conditions related to accidents
  • Demonstrate use of appropriate formula applied to specific accident situations

Successful completion of Collision Investigation Basic course.

Chris Clark (Duty to Intervene & Traffic Program Manager)

(206) 823-7784

Who can attend our classes?

Certified law enforcement officers that meet the pre-requisites are eligible to attend class.

Required Equipment

  • Traffic Template (given in Basic Collision)
  • Scientific Calculator
  • Notepad or small bound notebook for math work, pens, and pencils
  • Pad of large size drawing paper (recommended 24 x 26 minimum)
  • Large drawing triangles (30-60-90 degree and 45-45-90 degree) recommended 12" triangles
  • Mechanical drafting pencil with replaceable lead
  • Clipboard
  • Colored and Drawing pencils
  • Drawing compass
  • 360-degree protractors
  • 100 and 300 foot measuring tapes
  • Flex curve (optional)
  • Drafting dividers (optional)
  • Outdoor clothing/shoes for outside exercises

Dress Code

Visitors attending training at the WSCJTC are encouraged to wear their agency logo shirt/uniform or agency ID badge while on campus. 

Visitors not wearing agency identification can attend classes in business casual attire.  They will need to check in at the front desk and wear a clip-on visitor's identification card.


Hours are typically 0800 - 1700 Monday through Friday, unless noted otherwise.


Contact your training unit or Training Manager to register you in the Acadis Portal.

If classes are full, or not available, please complete the Course Interest Survey.  This is not a waiting list, but instead helps us see if there is enough interest to create another class.  If we schedule a session, we will contact everyone who has completed the survey and request that registration be completed.

Follow this link to view scheduled Traffic Courses held through WSCJTC.

  • Click on the “Filters” tab
  • Click on “Program;” choose “Traffic (ATD-Traffic)” and then Apply.


Deadline to cancel: 7 days prior to class. Send an email to

$200 no show or late cancellation fee.