Whether it’s performed by a cell phone or by any other device, the electronic communication is of utmost importance for the criminal justice system. The conversations made by these specific technical means bear various kinds of information, starting with content of the communication itself, and ending with the details that ensure the identification of the subject, its location, the IP address and some other relevant data necessary for a fair settlement of the criminal case. Therefore, when it comes to investigating activities effectiveness the interception of the electronic communications plays a central part.