Whiskey
From the JCP -
AMSA expects improved search and rescue response times, through more accurate and timely location of aircraft, from ADS-B transmitted data, especially in areas not presently under radar coverage. Based on historical accident data, AMSA has estimated 2-3 fatalities could be prevented per annum, assuming wide geographical
coverage of ADS-B base stations and a high proportion of the general aviation fleet
fitted7.
Basically it allows an extension of the current analysis of the console radar recorded data in backtracking the aircraft flight and possible arrival to earth - so you are on the money with that thinking
