Which statement correctly describes the requirement for expert evidence to be admissible?

• A. The expert must be qualified and the testimony must assist the court with specialized knowledge.
• B. The expert must be the party’s lawyer.
• C. The evidence must be supported by hearsay.
• D. The expert must be a layperson.

Answer: (A)

The essential idea is that expert evidence is allowed only when the witness has the right specialized credentials and the opinion will help the court understand something beyond common knowledge. The expert must have appropriate education, training, and experience in the relevant field so their conclusions are credible. Beyond that, the testimony has to be useful to the judge by applying that specialized knowledge to a fact in issue, rather than merely restating what anyone could observe.

This is why credentials and the usefulness of the opinion are the key tests. It doesn’t require the expert to be the party’s lawyer, and it doesn’t depend on hearsay being present, nor does it mean the expert must be a layperson—quite the opposite: experts are expected to provide informed opinions in areas requiring expertise.