There isn't much change done compare to demo and full version.
Using wrong banishment tool is a instant game over in all difficulties but if you get captured during a hunt at full health in first two difficulty you survive and ghost is revealed.
Perhaps you can find all three evidences to shortlist 2 ghost. Try to figure it out using their behavior then mark in the journal. If you are not sure you can get captured by it. If your guess is right you will get money for identification or you will lose it but you will know what ghost it is.