The invention relates to a device for use in the evaluation of suicide risk of a person. The device comprises a measuring unit (1) for measuring electrodermal activity in the fingers of the person in order to detect depressed persons who are at risk for suicide. The measuring unit is arranged to transmit a certain experimentally well defined sound signal or tone to the person and to provide a signal for the analysis of the electrodermal response from the person in question. To facilitate the analysis or increase the precision of the result of the analysis the device also comprises means for measuring orientation reactions in the form of blood volume variations of the person, preferably by means of a phtophletysmographic method peripherally in the fingers (21) and/or centrally in the frontal lobe of the brain through the forehead (22), and changes in the pulse rate of the test person.