The Workplace Relations Commission upheld Keith O'Neill’s unfair dismissal complaint against Leo Laboratories Limited trading as Leo Pharma Ireland, but awarded no compensation. It found that O'Neill’s assault of a colleague at a private employee gathering caused his dismissal and could reasonably be investigated. However, CCTV evidence had been shared with the disciplinary decision-maker and appeal manager without being disclosed to O'Neill, making the dismissal process fundamentally unfair.