The victim's husband, sensing that Wu Jun and Jiang Yuan seemed disbelieving, spoke softly to explain, "I just blocked once, the injury wasn't serious. That person turned around and ran away immediately."
To block once would result in a cast-off pattern; to block several times would result in several patterns, unless there was no injury at all.
Wu Jun and Jiang Yuan smiled even more oddly.
This indicated that the man before them didn't understand Bloodstain Analysis at all.
As everyone knows, cast-off patterns are very easy to identify. If you want to simulate it, just take a cup of blood… if not available, urine can also be used as a substitute. Fill a large cup and splash it against a white wall, and the bloodstain or the yellow urine stain that appears will resemble a cast-off pattern.
Of course, if you just want to take a quick look, water can also be used as a substitute.
