Expert witnesses can provide useful testimony in a Washington, D.C. car accident case—and in some cases, their testimony is essential. Courts have held that in cases where the negligent conduct is “within the realm of common knowledge and everyday experience” a plaintiff does not need to present expert testimony to establish the standard of care or to prove that the defendant failed to meet the standard. However, in some cases, Washington, D.C. courts may require expert testimony to establish the standard of care, breach, or other issues.
If a case involves issues that are beyond the common knowledge of an average person, the court will generally find that an expert is essential to the case. For example, Washington, D.C. courts have held that an expert is required in cases that involve the operation of a juvenile detention center, the supervision of foster parents, the processing of credit card applications, and the maintenance of a water main system. A court has the discretion to admit or require expert testimony in a case.
In a recent case before another state appeals court, the court held that expert testimony was not required to rebut another expert’s testimony. In that case, the plaintiff had been injured in a car accident and filed a negligence claim against another driver involved in the accident, the owner of the vehicle, and an uninsured motorist claim against the plaintiff’s insurer. The plaintiff settled the claims with the driver and the owner but continued to trial against the insurer.