Genevan convention 1949 year forbids the "methods of physical and psychological influence", and in particular any pressure, in an order to obtain information from пленного. At the same time, the analysis of local modern wars testifies that in interrogations the prisoner of war there are psychological refinement, predilection and unjustified cruelty. Results over of stay in the captivity of servicemen brings to expressed to violations of personality, psychical and somatic health. Drawing on accomplishments in the field of diagnostics of unverbal behavior, expounded in a manual, will allow to the military secret service agent within the framework of observance of international norms to conduct the interrogation of prisoner of war and get reliable information. The medical and psychological consequences of stay of servicemen in a captivity and their rehabilitation are presented in a manual. A manual is counted on soldiery дознавателей, psychologists and soldiery doctors.