collection of crash scene evidence by bryon o'neil

Deputy Bryon O’NeilClackamas County Sheriff ’s Officebryonone@clackamas.us971-255-7157 (Cell)

My Experience Hired by Clackamas County Sheriff ’s Office in 2006

Completed IPTM Reconstruction Courses in 2010

Full Time Reconstructionist since February 2014

Collected Evidence 25 Crash Scenes

10 Crime Scenes

Previous Experience with Total Station/Hand Measure

Bought the FARO X330 in March 2014

Scanned 19 Crash Scenes

6 Crime Scenes

Equipment

Settings

Resolution : The resulting scan resolution. You can select from1/1, 1/2, 1/4,1/5, 1/8, 1/10, 1/16, 1/20 and 1/32 by using the slider.

Quality: Controls the rate of data capture. Quality (noise level) vs. Speed (time)

Scan Duration: Approximate scan time.

Scan Size: Numbers of point in horizontal and vertical axes

Point Distance: Point spacing at known distance.

Resolution

The Higher the Resolution setting, the smaller the point distance.

Practical Example

Scanning Times

Planning Your Scene Scanner Locations

75 feet between Scans

Planning your scene Sphere Layout Sphere Placement Maximum Distance

139mm: Max 60 feet from the scanner

150 mm: Max 60 feet from the scanner

200 mm: Max 90 feet from the scanner

Avoid placing Spheres in front of windows or mirrors if possible.

Not on the vehicles

Keep track of your progress

Spheres knocked over

3 Common Spheres

Creating the 3D Image

Target Based- Spheres, Checkerboard

Cloud to Cloud- Similarity is important

Top View Based-Great for internal scenes

Manual

Manual Helpers

Planes

Points

Spheres

Are spheres really necessary?

Are spheres really necessary? Location, Location, Location

Crash Scene vs Crime Scene

Peace of Mind

Recommended Sizes: Bigger is better

Other Options

Are spheres really necessary?

Mounting Spheres

Scanner Placement-Vehicles

Scanner Placement-What do you want to capture? Roadway

Crush

Skidmarks

Gouge Marks

Paint Transfer

Scanner Placement-Making the Connection

Scanner Placement-Making the Connection

Scanner Placement-Making the Connection

Scanner Placement-Making the Connection

Aiming

Weather

Weather

Weather

Rain Workarounds Paint

Lumber Crayons

Evidence Markers

Traffic Cones

Other Weather Effects

Other Weather Effects

Paint

Paint

Paint

Paint

Spectators

Spectators

Spectators

Accuracy

Accuracy

Mirrors/ Windows

Street Signs

Reflective Items

Data Preservation Raw Scans

Burn to a disk

800 MB 4 scans

4.5 GB 25 scans

2 GB 7-8 scans usual Crash Scene

One copy stays untouched in the work product

Final Product

4-6 GB for crash Average

58 GB 25 Scan

Scene SoftwareMinimum Requirements

Microsoft Windows XP/ 7 / 8 (64 bit Only)

Multi core Processor 2GHz plus

8GB RAM

Wheel mouse with 2 buttons

Independent graphic card with OpenGL 2.0 or higher support – 1GB on board memory

My Computer

3.6 GHZ 8 Core Processor

32 GB Ram

NVIDIA Quadro K600 Graphics Card 1GB Memory

3D Mouse

2- 27”Quad HD LED Monitors

Scene Software Merging

Cleaning

Measuring

Fly through movies

Viewing in 3D

Scene Software Demonstration

Scene Software- Video Demo

Scene Software- Video Demo

Questions?