Emotional intelligence is one of the issues of interest not only in the field of psychological science but also in many other scientific disciplines. Studying emotional intelligence with different subjects will contribute to deepening theoretical problems with new aspects. Emotional intelligence associated with specific activities will be affected by some factors at different levels. At the Department of Security Investigation of the Ministry of Public Security (DSIMPS), emotional intelligence is influenced by the following factors: working environment, gender, physical condition, or object of contact... The article shows that these elements have an influence in varying degrees on investigators in investigative activities.