Background: Threats and violence are a major problem in healthcare that negatively affects both staff and patients. Acute Psychiatric wards are one of the most affected workplaces in healthcare and where work on threat and violence prevention is highly relevant. Violent preventive theories and concepts exist as developed research like the Bergenmodel, Deescalation and low-impact arousal. Aim: The aim is to describe the nurse's experience of the working group's application of threat and violence prevention measures in emergency psychiatric care. Method: The study is a qualitative interview study with a descriptive approach. Results: Three themes were identified - Prophylaxis measures, avert escalation and preserve knowledge. Crucial to the violence prevention work in emergency psychiatric care was to seek for respectful tone in encounters with patients to avoid escalating a suspected threatening situation. Knowledge, experience and training together with good cooperation inthe working group can lead to reduced situations of violence as staff is given the opportunity to experience safety and security. Conclusion: Adequate care with a focus on communication and professional encounter together with solid training is important for the working group's ability to work with violence prevention.