This case study illustrates approaches to promoting the wellbeing of and initiating psychosocial care to support the mental health of the staff of public sector services in the UK. It focuses on staff who work in emergencies, including in the fire and rescue, police, ambulance, and search and rescue services, often referred to in the UK as the Blue Light services. This case study provides information illustrating what can be done to assist the work of employing organisations to promote the mental health of all employees – that is, senior, middle, junior, general, and professional managers and their staff. It describes important concepts in planning and in delivering interventions.