Here are a lot of cybercrimes. If you want to catch a cyber-thief, you should know, how to did the cybercrime happen, when did it happen, etc.
Chinese forensic guys wrote an article “Find out files transferred via Bluetooth”. They showed a way how did the file leak from the device. What kind of mobile artifacts show us what the file was transferred via Bluetooth. They used Belkasoft Evidence Center for the investigation.