Forensic video recording with presence detection

A non-transitory computer readable storage medium having a computer program stored thereon for associating image data for an event with a presence of a law enforcement officer at the event, wherein execution of the computer program by at least one processor performs the following steps:

• receive an item of image data from an image data recording device mounted on one of the law enforcement officer and a law enforcement vehicle;
• receive an item of proximity tag data from a proximity tag reader, wherein the item of proximity tag data comprises information indicative of an identity of the law enforcement officer and a signal strength received at the proximity tag reader, wherein the law enforcement officer is associated with a proximity tag,
• wherein the proximity tag is a device that radiates an identifying signal that can be read by a corresponding the proximity tag reader;
• combine, using a combiner, the item of image data and the item of proximity tag data including the received signal strength into an augmented frame,
• wherein the item of proximity data is stored as metadata in a header of the augmented frame;
• and
• after the item of image data and the item of proximity tag data are combined into an augmented frame, store the augmented frame in a video recording to thereby associate the presence of the law enforcement officer with the event and determine positional information of the proximity tag within the video recording based on the received signal strength.