An electronic device for collecting evidence during training sessions. The electronic device comprises a communications module for acquiring real-time training session data during a training session; a real-time data acquisition module for generating time-stamped training session data; an input unit for acquiring instructor rating data input by an instructor during the training session; a real-time instructor rating module for generating time-stamped instructor rating data; a storing module for storing real-time data of the training session in a data repository, including the time-stamped training session data and the time-stamped instructor rating data; a debriefing module for retrieving real-time data of a training session from the data repository, replay the real-time data on a display, and update the instructor rating data in the data repository with updated instructor rating data received from an instructor during the replay.