Аннотация:When identifying a speaker by voice and speech, a special role belongs to the specifics of the utterance prosodics. The average value of the fundamental frequency (F0) is traditionally considered an essential feature in the identification study of speech, since it is characterized by a fairly high degree of inter-speaker variability. In order to analyze informative acoustic correlates that enable identification of a foreign speaker, a study was conducted on the basis of the SIS II automated platform involving the material of the Tajik and Romany languages. In this study, in relation to the languages mentioned, the most informative values for identification comparison are fundamental frequency (F0) values. In general, acoustic correlates acquire identification significance only in combinations of features, in their frequency and recurrence; therefore, in order to obtain reliable identification results, it is necessary to detect a broad range of prosodic characteristics of unprepared non-native speech. The implementation of prosodic means of shaping a speech utterance is the basic factor in recognizing a non-native language by a forensic expert who does not speak the language under study and identifying “speakers” who speak a language that is not native to the forensic experts.