Blood type is considered to be class evidence. Although it may not specifically identify the suspect, explain how it still could be useful in helping to investigate a crime?

Question

Clara Atchley · Accepted Answer

Everyone has a specific blood type.

A blood type is determined by a combination of genes from both parents, and can be either A, B, AB, or O. Although two people can have the same blood type, if you find B blood, you won't have any A blood types on your suspect list. This is useful in other situations as well, such as paternity/maternity cases!

Gabriella Anderson · Answer

undefined Blood type can be useful in investigating a crime by narrowing down potential suspects based on the blood type found at the crime scene. It can exclude individuals who do not have a matching blood type, reducing the pool of suspects for further investigation.

HIX Tutor · Answer

undefined Okay! Here’s how blood type can help in a crime:

1. **Narrow Down Suspects**: Blood type can help to reduce the list of people who might be the criminal. If the crime scene blood matches a suspect's blood type, that person could be a possible match.

2. **Link to Victim**: If a victim's blood type is known, police can see if the blood at the scene matches. This helps to understand what happened.

3. **Exclusions**: If a suspect's blood type does not match the blood found, they can be ruled out as a suspect.

4. **Patterns Over Time**: If many crimes have the same blood type found, it could help identify a pattern or a particular suspect with that blood type.

5. **Build a Case**: Although blood type alone doesn’t prove who did it, it can be a piece of the puzzle when looking at all evidence together.

So, blood type helps by giving clues and helping to focus the investigation!