Undoubtedly it is an indecent and censurable thing to investigate about people's individual conditions and knowing about their secrets. A sort of security is anticipated in Islam that is not exclusive in the world. It is the security of respect, prestige and thoughts of individuals. Undoubtedly this precious thing will be in danger with suspicion and investigation. On the other hand, in both principles of 23 and 25 of the constitution especially in the principle of 23 we have: the investigation of opinions is forbidden and nobody can object about opinions. The principle of 25 says: recording and revealing of the conversation or telegraphs and telegram and their censor and overhearing is forbidden, unless the law permits. This article attempts to study and explain this problem.
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