The Internet contains an unfathomable amount of data. This data can be of added value in investigations. By using Open Source Intelligence (OSINT), investigators can retrieve data that is important to the investigation. For example, it can be used to map social networks, collect and analyse news messages and provide insight into forum publications. During the OSINT training sessions, investigators are taught the right skills to collect and interpret data from the public Internet. What information is true, what data is reliable and how can the found results be properly recorded? These question are all answered during the training.