Standard dump files are easy to check for, because they are always in %windir% and always named MEMORY.DMP. But minidump files are placed in %windir%\Minidump and named according to the timestamp, so a machine can have multiple minidumps.
As of now (6.0.0.63) Lansweeper File Scan cannot tell me if multiple files exist in a given folder.
Mainly what I'd like to see is a way to report on machines that have ANY minidump files.