Footage of Mrs Brown
Blood spatter analysis
Blood spatter analysis can show how the victim was attacked, if the perpetrator used a weapon and the way the blood pattern forms can show how the blood drops fell. Results are below the video.
In this case, after the analysis show below, we have the following updates to the case:
- Pattern found at the scene: drip and low impact blood spatter.
- Analysts have concluded that the victim was hit first.
- The perpetrator then stood with the object (causing a drip pattern) before throwing the object, creating a low impact spatter pattern.
DNA Extraction from an onion – home experiment
Although not used in this particular investigation due to contamination of the scene by students, DNA recovered from crime scenes is often used as key evidence.
Here’s a fun experiment you can do at home to actually see DNA!
