The document provides an overview of accident investigation procedures. It outlines the objectives as understanding the need to investigate accidents, determining causes, identifying prevention methods, and sources of assistance. An accident is defined as an unplanned event or injury. Accidents typically occur from a series of unrelated events and most involve an unsafe act. Reasons to investigate include preventing recurrence, determining causes, documenting the incident, and meeting legal requirements. Investigations should be conducted immediately by qualified personnel. The process involves gathering witnesses, understanding contributing factors, identifying causes, and implementing corrective actions to prevent future accidents.