Talmage, try a Google search for 'coroners reports croydon' or something similar. Most of what I found seemed to relate to the 20th c. I'm sure the Croydon Local Studies Group will be able to give you a definite answer as to whether they exist. The Surrey History Centre's online catalogue which is searchable seems to be having problems so I couldn't search there but you might have better luck. If they do exist they should be at one of these places,
jane