A recording system for an emergency response unit includes a first data collection device configured to record a first video, audio or data segment with an incident identifier and transmit a message including the incident identifier. A second data collection device may receive the message and, as appropriate, record at least a second video, audio or data segment with the incident identifier, allowing the first segment and the second segment to be associated using the incident identifier. In other embodiments, a first recording device may begin recording video, audio or legal evidence data with an incident identifier, and a control system may receive a message including the incident identifier from the first recording device, identify one or more additional recording devices located within a certain distance of the first recording device, and obtain recordings from the one or more additional recording devices.