The law in Chicago is catching up to the reality that social media is a normal part of our daily lives. Currently there are new laws and rules of procedure that are designed to ensure that social media evidence can be used in court. The problem remains that evidence gathered from social media posts can be unreliable. There have been cases in which postings from Twitter and Facebook have been presented as evidence of crime, but the court has rejected them because they are not reliable.
From a personal point of view, all the posts that you make on social media can potentially be used against you in criminal trials. Even employers are now allowed to view your social media posts when they are made using their official equipment at work. The person who is posting can make use of the privacy options on the social media account in order to reduce the risk of being exposed later on when the police agencies are trawling for evidence. The Stored Communications Act (the SCA) of 1986 is a federal law that tries to provide some protection for posters.
Social Media Postings and Criminal Trials
Chicago Criminal Lawyer Blog










