Published on November 6, 2026
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Some disputes turn on a vehicle’s condition, repair history, or value. In those cases, vetting often works best when it starts with the exact question at issue.
Did a part fail? Was a repair on record actually done?
How might damage affect value? Starting there helps attorneys and insurers see what expertise the case needs.
Federal Rule of Evidence 702 governs expert testimony in federal court. It allows an expert to qualify through several paths, including experience and training.
The useful question, then, is how well a candidate’s background fits the vehicle type and system in dispute. No single credential shows that fit on its own.
A certification shows that someone met defined requirements. Years of diagnosing the same kind of failure, on the other hand, can show know-how that a credential may not capture.
Ongoing training adds one more piece. It can show that a candidate has kept up with changing vehicle technology.
A gap between background and question may draw scrutiny later. Spotting it early gives attorneys a truer view of the evidence.
Setting the scope of the retention is a related step, covered in SSP’s article on how attorneys can use a vehicle inspection expert witness.
Vehicle inspectors often rely mainly on experience. The Advisory Committee Notes to Rule 702 address witnesses like these.
Such a witness is generally expected to tie that experience to the conclusion. That includes showing why the experience supports the opinion and how it fits the facts.
An expert’s own word that an opinion is reliable is generally not treated as enough.
Beyond that link, two practical points are worth asking about. One is whether the candidate weighs other plausible causes before settling on one.
The other is whether the candidate brings the same care to litigation work as to regular work.
Clear explanation matters too. Strong technical knowledge may help less if judges and juries cannot follow the reasoning.
Plain, well-organized explanations tend to make vehicle findings easier to examine.
Inspection and appraisal opinions generally address condition, repairs, documented defects, and value. Other questions usually call for other experts.
Examples include crash reconstruction, electronic crash data, driver behavior, and engineering design. Legal conclusions, such as whether a warranty was breached, belong to counsel and the court.
Scope also affects how an opinion is worded. The 2023 Committee Note on Rule 702 stresses that an opinion should not go further than the expert’s facts and methods allow.
It also warns against claims of absolute certainty when a method involves judgment. That makes a candidate’s phrasing worth noticing.
So does the way the candidate answers questions beyond the record or outside the field. This matters because an opinion that goes too far can invite challenges.
That can happen even when the inspection itself was sound.
SSP Vehicle Litigation Services is led by Steven S. Paul. His verified background includes more than 30 years of hands-on mechanical diagnostic and inspection work. It also includes over 8,000 vehicle inspections, more than 1,000 written expert reports, and testimony over 50 times. He has been qualified in state and federal matters. He holds ASE Master certifications in automotive and medium and heavy-duty trucks. His background also includes appraisal, RV inspection, and forensic vehicle credentials.
Attorneys and insurers bring vehicle condition, repair, failure, and value questions to SSP. The work may include an objective inspection, record review, a written report, or testimony. That experience helps distinguish what the vehicle and available records support from what cannot be concluded. The fit still depends on the vehicle, disputed system, available evidence, and opinion scope. The review begins with demonstrated work rather than a directory label alone.
Not necessarily. Listings often contain details the expert supplies.
Some directories also state that they do not verify those details.
Driver-assistance systems, electric vehicle batteries, and vehicle software are common examples. These areas may need engineering or software expertise beyond a standard mechanical inspection.
A separate or added expert with directly related experience may fit better.
Past deposition and trial transcripts can show how a candidate has handled questioning. Some courts have also published decisions that discuss a candidate’s testimony.
Where they exist, they can show how that testimony was received.
Reports can show whether the candidate links observations, test results, and records to each finding. They can also show whether the candidate notes missing records.
Another sign is whether the report flags where the material may not support a firm finding.
A proposed scope generally names the vehicle, systems, records, and any planned testing. It can also show whether hands-on access is needed.
The retaining attorney typically arranges that access.
SSP provides objective mechanical evaluations, certified inspections, and court-admissible reports that help legal teams understand vehicle-related facts without bias.
