As you might know, there are many Iranian students outside of the country who are constantly in touch with Iran. Sometimes, such relations cause problems, because some people in Iran act beyond the law in pretext of providing national security. These people make charges and torture others on the basis of false accusations which are even against the national laws. For the past few years, different groups of people including students and journalists have been arrested for alleged espionage, convicted and sentenced to grave punishments. It is possible that each one of you or one of your friends become victims of such behaviors. Therefore, knowing legal issues in this regard can help you to defend yourselves under difficult circumstances.