amirhosein yavari

Immigration, whether it occurs across national borders or within a country, has social, political and economic impacts on both the origin and destination societies. This study, which uses a descriptive-analytical method, examines the phenomenon of increased immigration in the European Union and explores its legal and sociological implications. One of the key issues that arises from the consequences of foreign immigration is the lack of cultural familiarity of the immigrants with their new environment, which often leads to their maladjustment and disharmony. The research findings indicate that the crises of new racism, multiculturalism, humanitarianism versus national interests, participation and loyalty are among the legal-sociological outcomes of immigration in Europe.

This research is conducted with the aim of determining the mass of digital currencies and tries to express a new point of view for the mass measurement of virtual currencies by combining the information data available in the real space and the virtual space.

In terms of the type of research, the current research is an applied research, and in terms of the implementation method, it is a mixed research method with two qualitative research methods (with thematic analysis technique) and quantitative method (with survey technique). The statistical population is the qualitative part of elites and experts, and the statistical population is the quantitative part of cryptocurrency crime detection experts. The data collection tool in the qualitative part is a semi-structured interview with the snowball sampling method to achieve theoretical saturation, and the tool for collecting the quantitative part is a questionnaire whose validity and reliability have been confirmed before implementation through face validity and Cronbach's alpha. Thematic analysis research data were analyzed by coding method and quantitative data using spss software.

The findings of the research show that the three main categories of structure, decision-making and information are effective on the dependent variable of the research, i.e. the massing of virtual currencies.

It is concluded that the most important indicators of the comprehensive system of criminalization of digital currencies are the development of guidelines and guidelines for criminalization of digital currencies, and there are traces of money laundering through digital currencies and the identification of information and cyberspace agents that cause criminalization of virtual currencies in The research is clearly visible. These cases are important factors of disorder and disturbance in economic security, and failure to extract a model for these currencies, its economic consequences will be irreparable.

This study focuses on the impact of interaction between police and NGOs on crime and is based on the assumption that NGOs can assist police in their interaction.

This research is an applied type based on purpose and survey data. The data collection tool was a questionnaire, which was distributed among the statistical sample by simple random method and field method. Factor analysis with structural equation modeling by Amos software is one of the methodological strengths of this research and SPSS software was used for descriptive analysis of data.

The results of confirmatory factor analysis confirm the validity of the scales defined by the observed data. Research findings show that information-driven interaction between police and NGOs has a positive effect on crime.

Since the role of the police as a factor in protecting security, preventing crime and safeguarding the values ​​governing society is equal to the rules, and the work of NGOs is in line with the overall goals of society, therefore, police cooperation and interaction with organizations Institutional people can play a significant role in advancing police missions.

One of the most important problems and issues facing crime detection units in their missions which sometimes put the staff of these units in harma’s way is lack of information superiority of these units in terms of crime tracing and detection facing them. To identify this problem and utilize solutions and take preventive security measures, it is necessary to conduct such research in ths regard. Therefore; the general objective of this research is to investigate the role of information superiority in crime tracing and detection in NAJA crime tracing units and to present preventive solutions. The present research is of applied type from type and objective perspectives and it with a qualitative approach. The study society includes specialized police staff as law enforcement agents in NAJA crime tracing units regarding the research subject. Using purposeful and hypothetical sampling, 20 persons were selected as samples and the process of sampling conitued till achieving hypothetical saturation. The tools used to collect data were presented with deep interview technique with the said people regarding identification, discovery and proving of crimes and finally arresting criminals. The findings show that information superiority is considered as one of the fundamental and necessary requirements of success in NAJA crime tracing units in the fields of crime detection and tracing and it can help these units in crime tracing measures such as identification, discovery, proving of crime and finally arresting professional criminals and gangs in police missions. Using committed and skilled human resources, having appropriate equipment and technology, informatns and sources at information spots, obtaining information about crimes and criminals, having data banks and finally preparing mission requirements in establishing information superiority are all very effective. In regards to the effective role of information superiority in identification, discovery and proving of crimes and arresting criminals, obtaining effective factors, eliminating the problems of crime tracing units are all emphasized for the success of police.

Although theft is one of the oldest crimes in human societies and the human mind has provided many solutions to prevent and confront it, but it is still one of the important priorities in the science of crime (at least in the Iranian police). Over time and by changing the methods of theft, especially burglaries, police detectives (as experts and leaders in the police structure in detecting theft and identifying criminals) also have adopted appropriate methods and strategies, including information-based methods to start dealing with thieves and realizing the rights of victims. But there is always the concern as to which information-based methods can be more effective in detecting burglaries, and what model can be used. This research was conducted using the Delphi method and it used the opinions of 37 students and doctoral graduates in the fields of forensics and criminology (in full) in two stages of completing a questionnaire.
Based on research findings, 5 information-based dimensions in detecting burglaries  has been identified and measured and the results indicate that while confirming the existence of a significant relationship in all these dimensions, it also shows a very strong correlation between them. In the research conducted, and the questionnaires collected in the first and second phases and the experts’ verdict, it was determined that among the dimensions identified in the information-based burglary detection, the highest correlation is in the dimensions of "use of electronic technologies.

Combating arms and ammunition trafficking is one of the important missions of the law enforcement force. Criminalistics is very important in this process. In regard to the complexity of the crime of arms and ammunition trafficking and the existence of certain problems in the process of investigating and detecting them, particularly in accessing to documents and documentations, the role of criminalistics science is very significant in throughout this process. This research is of applied type from type and objective standpoits and of descriptive-analytical type from nature standpoint and it deals with investigating criminalistics to detect arms and ammunition trafficking. To answer the research questions, all the existing documents and deeds related to the present subject have been collected using data collection forms and have been analyzed qualitatively. Many factors have been involved in various economic, socio-cultural, political-security and judicial measures in smuggling weapons and ammunition in the country, which in addition to having unfortunate consequences for the country requires the use of basic solutions to solve this problem at the national level. Criminalistics, as a modern science, uses technical tools to collect and discover evidence, record, investigate and regulate criminal investigations, therefore using it to identify, detect and prove weapons and ammunition trafficking isvery important as one of the missions of the police force using intelligence, operational and judicial measures.

Attention to sociological or socialization indicators of special units is one of the main factors in their success in today's world. Therefore, the present study was designed to develop a social model of a special unit for the I.R.I. Police.
In order to implement this research, a qualitative and quantitative method has been used. In the first stage (qualitative), the focus group interview technique was used and according to the obtained data, a second phase questionnaire was designed. After collecting the information from the questionnaire, the results are evaluated and analyzed in depth. In the present research, the statistical society includes managers, custodians and law enforcement experts who have the ability to respond to the questions of the researcher, based on their job conditions or practical experience or conducting research and studies related to the subject matter of the research.
Findings and The results show that the principle of "Increasing the insight of the officers (breaking down good from evil) is invoked by the views of the Supreme Leader", with the highest score, and the principle of "Reforming and securing the laws needed by the special unit", enjoys the lowest score among the basic principles of the social capital model in the special unit of the I.R.I. Police. Meanwhile, the socio-logical model of the special I.R.I. Police's unit consists of five components: 1. Transformation o organizational goals and structure; 2. Change in the technology used to combat professional criminals and protection of the safety of ordinary people; 3. Modification of HR management; 4. Change in other resources (social assets, resistance economics, etc.); and 5. Modification of field behavior.

Survey conducted by the center for disease control of the ministry of health shows that cases of AIDS through risky sexual behavior are increasing that could be warning for the intensification of the negative consequences of the disease in the community. Difficulty in emotion regulation and exposure to traumatic event are the most important factors in risky sexual behavior. The aim of this study was to investigate the mediating role of emotion regulation difficulty in the relationship between risky sexual behavior and exposure to traumatic events.
Two hundred substance abusers admitted to addiction treatment and recovery centers in Shiraz were selected by convenient sampling. To collect the data HIV Risky Sexual Behavior Scale (HRSB), Difficulty in Emotion Regulation Scale (DERS) and Life Event Checklist (LEC) were used. Possible causal model was analyzed by Structural Equation Model (SEM).
The results of this study support the mediating role of emotion regulation difficulties (β=0.31, P=0.0001) in the relationship between exposure to traumatic event and risky sexual behavior.
According to evidence, it can be concluded that exposure to traumatic event and difficulty in emotion regulation can provide risky sexual behavior. Furthermore, trauma by disrupting the emotion regulation can lead to risky behavior.