SharePoint 2013 eDiscovery

Today I investigated the eDiscovery functionality in SharePoint 2013. With eDiscovery users are able to gather information from different sources like mailboxes and SharePoint sites and access that information from their own eDiscovery site, which will be called a 'Case'. In the real world the eDiscovery functonality can be used by lawyers or litigators. They are able to quickly discover information about a particular client or project. With eDiscovery in SharePoint 2013 they are also able to freeze the information that has been 'discovered'. They can do this with the In-Place Hold feature. When these holds are placed on documents SharePoint actually freezes the documents. Modifications to these documents will be preserved by SharePoint.