The Supreme Court allowed Gavin Tobin’s appeal over discovery in his personal injuries action against the Minister for Defence, Ireland and the Attorney General. It restored the High Court’s discovery order for the disputed categories, subject to a time limit: for certain categories, discovery is confined to the period when Tobin was assigned to the Engine Repair Flight (ERF), from January 1990 to the end of February 1994.
Tobin alleges that he was exposed to dangerous chemicals and solvents while employed as an Air Corps aircraft mechanic and that he suffered personal injury as a result. He also alleges that he was subjected to “tubbing”, which he described as being doused with chemicals by other Air Corps personnel. The State denied the allegations, apart from accepting his employment, and pleaded contributory negligence. The Supreme Court judgment concerns the scope of discovery, not whether the allegations are true or whether the State is liable.
The High Court had ordered discovery across several categories of documents. The Court of Appeal narrowed that order, directing Tobin to seek information in several categories through interrogatories and limiting some documents to the ERF. Tobin appealed to the Supreme Court. The State estimated that a full search would require ten staff members and about 220 hours; Tobin disputed that estimate.
The Supreme Court held that relevance is the starting point and that relevant documents will generally be treated as necessary, but that a requested party may show why discovery would be disproportionate. The State had to demonstrate that alternatives such as interrogatories could provide the needed information with a significantly smaller use of resources.
The Court was not satisfied that the State had made that showing. It reasoned that meaningful answers to interrogatories would themselves require significant research through State documents. The requested information about chemicals, possible exposure circumstances, training and incidents was central to the case. The Court described the discovery burden in this case as moderate, rather than severe or extreme.
On Categories 1 and 12, the Court held that the pleadings did not confine Tobin’s claim to exposure occurring physically inside the ERF. It restored the High Court order for those categories, while limiting the relevant period to his ERF assignment. It also restored the High Court order for the other disputed categories, including records about chemicals, safety training, incidents and chemical disposal. The judgment set out principles for assessing discovery burden and alternatives, while stressing that the result depended on this case’s circumstances.