When a situation arises requiring HR to launch an investigation, it is often a crisis. Reacting without forethought in the heat of the moment can lead to rushed, unplanned and ultimately less effective investigations that can make the situation worse. Diving directly into interviews is a common but critical mistake; interviews are essential investigative tools, which must be strategic and well planned to be effective. The following practical steps will help you use interviews effectively to further investigation goals, consistent with compliance requirements and best practice.