Expert Witness In Motorcycle Litigation.
Bret Tkacs has served as a retained expert witness in motorcycle cases since 2006, bringing thirty years of instruction, curriculum design, and crash analysis to civil and criminal proceedings. His opinions are grounded in physics and training standards, not conjecture, and his background in adult education allows him to explain causation clearly to a judge or jury.
WHY ATTORNEYS RETAIN BRET
An Instructor First, Not Just A Rider
Most motorcycle riders consider themselves experts because they ride well. Bret’s foundation is different. He holds a master’s degree in adult education, and for nearly thirty years his work has centered on how riders actually learn, retain, and fail to retain the skills that lead into creating or preventing a collision. That distinction matters in a deposition or on the stand: he is trained to explain complex technical material in language a jury can follow without losing the substance of the analysis.
His access to case material extends well beyond personal riding experience. Over two decades of casework, Bret has reviewed accident reconstruction data, coroner’s reports, and evidence from multimillion-dollar litigation, developing an understanding of crash causation that riding alone could not produce.
That same analysis has been trusted outside the courtroom as well. Bret designed the Motorcycle Mentor Training program for the United States Army Special Operations Command, authored three motorcycle curricula officially recognized by the Washington State Department of Licensing, and has consulted with the New Zealand Accident Compensation Corporation.
SCOPE OF EXPERTISE
Interpreting the Human Element
Bret’s value begins where that data ends. Reconstruction can establish what happened mechanically. It does not explain what a rider was likely perceiving, expecting, or capable of doing in the moments before a collision, and that gap is often where a case is actually won or lost.
Thirty years of instruction, including extensive on-road training and years of leading tours alongside riders of every experience level, has given Bret direct and repeated exposure to how trained and untrained riders actually behave under pressure. He recognizes the patterns: the habits an experienced rider defaults to without thinking, the assumptions an untrained rider makes about what a motorcycle can do, and the cognitive biases, target fixation and overconfidence built from years without incident among them, that shape a rider’s decisions in the seconds before a crash.
It is not Bret’s place to judge a rider against a legal standard of right or wrong; that determination belongs to the court. His testimony addresses a narrower and more practical question: what was reasonable, common, and safe for a rider to do, given the training, the conditions, and the equipment actually involved. Reconstruction data can tell a court what happened. Bret’s analysis tells the court what that data actually means for a real rider in a real moment, which is not always what the numbers suggest when read on their own.
CASE HISTORY
Retained by Both Plaintiffs and Defense
Since 2006, Bret has been retained as an expert witness in 15 motorcycle-related matters spanning civil litigation and criminal proceedings. His engagements are not concentrated on one side of the docket. Attorneys representing plaintiffs and attorneys representing defendants have each sought his analysis of rider behavior, training adequacy, and crash causation.
An expert who works only one side of a case is easy for opposing counsel to dismiss as an advocate rather than an analyst. Bret’s willingness to serve either plaintiff or defense, depending on where the facts and the physics actually lead, is part of what makes his conclusions difficult to characterize as biased under cross examination.
An expert who accepts every engagement offered is an expert whose opinion is worth exactly what the retainer paid for. Bret evaluates the evidence before any agreement is signed, and if his honest reading of the training standards, the physics, or the rider’s actions does not support the case in front of him, he says so at that stage rather than after depositions have begun.
For attorneys, this history is an asset at trial. An expert with a documented record of turning down work he could not honestly stand behind is far harder for opposing counsel to paint as a hired gun, and far easier for a jury to trust.
Names of individual parties have been withheld to protect the privacy of those involved, including surviving family members in fatality cases. Case summaries are intentionally brief and do not include identifying detail beyond what is necessary to show the scope of Bret’s work.
YEAR
RETAINED BY
MATTER
SUMMARY
2010
State of Washington v. Private Party, Marion County
Right of way collision. Strategic case guidance provided
SCOPE OF TESTIMONY
Areas of Expertise
INTERPRETING RECONSTRUCTION FINDINGS
Translating accident reconstruction data, coroner’s reports, and physical evidence into what they actually mean for a real rider’s behavior, not performing the reconstruction itself.
RIDER BEHAVIOR & COGNITIVE BIAS
Identifying the trained and untrained patterns, assumptions, and cognitive biases, such as target fixation or overconfidence, that influence a rider’s split-second decisions.
MOTORCYCLE DYNAMICS
Traction, weight distribution, braking, and momentum physics as they apply to real riding conditions, not theoretical ones.
Training & Instructional Standards
As the author of Washington State’s official motorcycle curricula, Bret can speak directly to what standard instruction does and does not cover.
Protective Equipment & Injury Causation
How gear choice, or the absence of it, relates to the injuries sustained in a given incident.
Instructor & Course Design Standards
Assessing whether a training program or instructor met the standard of care expected in the industry.
Discuss A Case
Attorneys and insurance professionals can reach out directly to discuss whether a case fits Bret’s areas of expertise. An initial review does not commit either party to a retained engagement.