Background and objective: Not satisfying needs of organizations’ staff has direct relationship with their low output, poor profitability and failure in materializing their objective. As a result, personnel needs should be considered to motivate them. The present research aims at reviewing the needs of police officers working for IRIPU.Method: The research was of applied type, and method used in it was of survey and analytical type. The theoretical basis of the research was Maslow’s hierarchy of needs. Statistical population has been all police officers working for IRIPU in 2008. Of these 140 were randomly selected based on Cochran formula. Standard questionnaire was used for collecting data.SPSS was used for analyzing data; moreover, McNemar’s test, c2 , and Mann–Whitney U techniques, as well.Finding: IRIPU police officers’ needs priorities were as follows: IRIPU police officers and male police officers: 1-self-actualization, 2-respect, 3-social, 4-safety, 5-physiological. Female police officers: 1-respect, 2- social, 3- self-actualization, 4-safety, 5-physiological. Police officers with MA degrees and higher: 1-self-actualization, 2- respect, 3- social, 4-safety, 5- physiological. Police officer with associate degree and lower: 1-respect, 2- self- actualization, 3-social, 4- safety, 5- physiological.Conclusion: Priority of IRIPU police officers’needs levels are completely unlike Maslow’s hierarchy of needs.