1. A video tagging method based on an incident report and an associated incident-specific dictionary, comprising: capturing keywords from the incident report related to an incident of interest at a first time period; creating an incident-specific dictionary for the incident of interest based on the captured keywords; capturing updated keywords at a second time period as the incident of interest unfolds; updating the incident-specific dictionary with the updated keywords; providing the updated incident-specific dictionary to at least one video camera capturing video based on a plurality of factors or providing the updated incident-specific dictionary to a back-end server communicatively coupled to the at least one video camera; and utilizing the keywords and updated keywords from the incident report by the at least one video camera to tag captured video.