The forum for computer-assisted reporting.lnvestigating emergency response times takes a lot of upfront reporting and data chasing before you know if you have a story. ... growth, journalists may wonder whether key public services, including emergency medical services (EMS), are keeping up. ... as Microsoft Excel and Access. l obtained three years of computer- aided dispatch (CAD) records of emergency medical calls, ... The data came in a comma- delimited text format at no cost because it required no special programming.