Ad-hoc recording system combining data from multiple sources

A method of operating an accident reconstruction system that maintains a database of videos collected by a plurality of cameras, the method comprising:

• receiving video data collected by the plurality of cameras disposed in a given environment and associated with a plurality of users enrolled in a data sharing service that includes an authorization to allow access to recorded data among the plurality of users wherein the video data are associated with identifying data, each camera in the plurality of camera comprising a given field of view and a given time stamp, the given time stamps covering the accident;
• stitching together the video data from the plurality of cameras to create continuous video data of the accident that creates an impression of a single video of the accident;
• receiving, from a first user of the plurality of users, a user request for data about a vehicle of the first user, the request including at least one parameter;
• searching, using the at least one parameter, the continuous video data for video data matching the at least one parameter;
• finding a portion of the continuous video data matching the at least one parameter that depicts the vehicle of the user;
• and
• returning the portion of the continuous video data matching the at least one parameter and depicting the vehicle of the user to the first user.