Blood evidence at the scene

(Hahahahahaha, while I was trying desperately to get blood to my crime scene I ended up cutting my hand on something sharp and ended up leaving a bloodtrail)

Blood from the perpetrator. Unlike collecting it from the bathroom sink, toilet, shower, etc. this sample would have to be cut out of the rug and taken with in a plastic evidence bag. I once had a teacher that told me "If it is mobile, then take the whole thing with you to the lab" this is blood from a human because i watched it pour out of my hand.

but i would normally test it with a cotton swab and the blood test.  and bag it in plastic bag or well ventilated container.