Master's Thesis from the year 2011 in the subject Business economics - Information Management, grade: 8, , language: English, abstract: Research novelty: the research links up probability, risk theories with their practical application at immigration service work;Aim of the research: to find out risk diminishing factors taking a decision at immigration service work;Object of the research: immigration service;Subject of the research: risk diminishing factors;Base of the research: immigration service officials;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. Questions of the research:1) What is decision?2) What can influence decision taking?3) Which is the best decision?4) Which are the reasons and consequences of incorrect decision?Theoretical model and references used:Juridical, mathematical, technical references were used including: books on probability, risk, decision taking theories, systemization and logic. Hypothesis of the research:Systematization of actions may reduce the probability to take incorrect decisions at immigration service work.