When dealing with dried blood stains on clothing, what is the correct procedure for evidence collection?

The appropriate procedure for collecting evidence from dried blood stains on clothing involves wrapping the item in clean paper and placing it in a bag. This method is vital for several reasons.

Firstly, it helps to preserve the integrity of the sample, minimizing contamination or degradation that could occur if the evidence is mishandled. Wrapping the item in clean paper ensures that it is protected from external substances that could interfere with later analysis.

Secondly, placing the wrapped item in a bag provides a secure environment for the evidence, reducing the risk of loss or additional contamination during transport to a forensic lab. This also allows for proper labeling and documentation, essential steps in maintaining the chain of custody.

Overall, this technique supports the critical need for maintaining the viability of the biological evidence for subsequent analysis, which is crucial in criminal investigations and court proceedings.