Analyzing past events by utilizing imagery data captured by a plurality of on-road vehicles

Systems and methods for analyzing past events by identifying and delivering specific imagery data that was collected and stored locally by a plurality of on-road vehicles. A plurality of on-road vehicles capture visual records of areas surrounding locations visited by the vehicles, in which the visual records are stored locally onboard the vehicles, thereby resulting in a corpus of imagery data that is stored distributively onboard the vehicles. Upon a request to analyze a past event associated with a certain location and a certain time, the system finds and retrieves from the vehicles those of visual records that were captured by the respective vehicles at about said certain time and in vicinity of said certain location. The visual records found and retrieved are used by the system to analyze the past event and to determine additional times and locations that may be relevant for further analysis the past event.