Investigators take samples of blood from the floor of a kidnapping victim's kitchen. The presence of blood might indicate that the missing person was wounded before they were kidnapped. Investigators are also informed by the family that the victim had a large Labrador retriever who is also missing. What test would the investigators use to determine if the blood was from the kidnapping victim or the victim's dog?

Well first you would need to know if the vet has any records of the dogs blood. Then you would also need to know if the they kidnapping victims doctor had samples of the victims blood. Then you would cross test the samples if the doctors had them to look for a match.

answer: a. 3 to 5 seconds  

-nfforlife

answer:

it is not true that when a bullet is fired, gunpowder only travels back towards the shooter. though gunpowder residue can remain on the shooter's hand for a few hours.

explanation: