Designing a managerial pattern of law enforcement prevention of crime repetition( case study:crime of armed roberry)

Law enforcement prevention of crime repetition by paying attention to criminals ,victims or situations of committing crimes, prevents recurrence of crimes. the purpose of this study is to obtain a proper managerial model of law enforcement prevention from the repeat of armed robbery in the country. the present study is applicable in terms of the practical purpose with a mixed approach with exploratory design. In the qualitative approach, the method is content analysis and in the quantitative approach it is a descriptive method of survey type. The statistical community in the qualitative section includes all experts of law enforcement agencies , in the number of 50 persons and in the quantitative section includes 1136 experts in law enforcement officials. In order to determine the sample size using the Cohen table, the sample volume on 1% error level was 338 and were selected as statistical population. law enforcement prevention variable from the repeat of armed robbery consists following dimensions: criminal - based prevention, non criminal prevention of victim and social prevention,elements of severity in the penal process of punishment, certainty in the penal process of punishment, acceleration in the penal process of punishment. the results of this study show that law - prevention management in preventing recurrence of armed robbery  has three dimensions as follows: criminal - based prevention , non - criminal prevention, environmental prevention via environmental planning, prevention of environmental strategies,society-based prevention. Therefore, the effect of non - criminal prevention on police prevention of recurrence of armed roberry is ranked first and the present status of police crime prevention management is perfect.