Is this your profile? It was recovered from an archived copy of HGExperts.com and may be out of date. Claim it to correct it, or ask us to remove it.

Claim this profile

Expert witnesses

Roger G. Johnston, Ph.D., CPP

Unclaimed profileOswego, Illinois

Call (630) 551-0740

Based inOswego, Illinois

Main fieldPolice, security and criminal justice

Areas of expertise25 listed

Similar experts

Crash Data Services, LLCAlgonquin, Illinois

3D AnimationAccident AnalysisAccident Investigation

Forensicon, Inc.Chicago, Illinois

Accident InvestigationAntitrustArbitration

Mark BriggsChampaign, Illinois

Accident InvestigationAccident PreventionAviation

Meridian Engineering & Technology, Inc. - Dr. Gary Hutter, P. E., CSPGlenview, Illinois

Accident AnalysisAccident InvestigationAccident Prevention