The research analyses the following problems: Decision and risk at immigration service (police) work, remote identification, biometrical systems and identification, probability of identification errors and their consequences, identification algorithms and their implementation, morphological analysis for decision making, practical experiments. Research novelty: the research links up probability, risk theories with their practical application at immigration service work; Tasks of the research: 1)To find out risk factors; 2)to analyse risk impact on decision making; 3)to define risk diminishing factors; 4)to put into practice risk diminishing factors. Research methods: The theoretical ones: To analyse references and service documentation; The practical ones: Observation, surveys, experiments, analysis.