In the research project "Identifying needs and developing criteria for the implementation of mutual psychological support to rescuers in the field of protection, rescue and assistance - PSYCHRISTS" we will deal with the following key tasks: Through literature analysis, interviews and surveys assistance for rescuers in the protection, rescue and assistance system; we will examine the acute problems experienced by paramedics after intervening to produce mental status with a view to screening for possible psychological support and assistance. Through the project, we will determine the criteria for psychological mutual assistance and prepare the possibilities of triage methodology and the development of a triage algorithm that will help counselors in deciding when rescuers need psychological support from a counselor or psychotherapist. Within the project, we will also develop concrete instructions and forms or checklists, which will enable the counselor to define the risk of the rescuer for psychlogical health and wellbeing and the need for urgent referral to the counselor or psychotherapist. The algorithm will be the basis for the preparation of materials for the development of a potential application for practical use on smartphones, if they ever decide on such an application in the future.