*Sums up his hours of watching Forensic files, I, Detective and Trace EVidence...*
I'm not an expert on blood, but that's what I've gathered......bleach didn't COMPLETELY clean the blood off the crime scenes (luminol still causes the blood to react). BUT, ammonia did screw up the ability to determine who's blood it IS.
So, not a fullproof tactic, but a better one lol
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