This motion addressed whether the Defendants were obliged to provide "foundational information" for an expert report served to the Plaintiff, pursuant to an undertaking.
The Plaintiff sought various documents related to the expert's instructions, assumptions, facts relied upon, and materials provided, as well as prior drafts and correspondence.
The court ruled that serving an expert report at the discovery stage waives litigation privilege over the foundational information (instructions, assumptions, facts, and materials provided to the expert), making it immediately disclosable.
However, draft reports and communications between counsel and the expert remain privileged unless there are reasonable grounds to suspect interference with the expert's independence.
The Plaintiff was largely successful in obtaining the foundational information, and costs were awarded in their favour.