Forensic Techniques in Hair and Fiber Evidence Collection

The video tutorial at the National Forensic Academy demonstrates techniques for searching and recovering hairs and fibers. It emphasizes the use of oblique lighting to identify recent evidence, avoiding vacuum cleaners that may collect older samples. Various collection methods are discussed, including the druggist fold and sticky notes, with a focus on proper documentation and preservation of evidence. The tutorial highlights the importance of using clean tools and changing gloves between collections to prevent contamination.

What is the primary focus of the National Forensic Academy as mentioned in the video?

• Fingerprint analysis

• Ballistics testing

• DNA sequencing

• Searching and recovering hairs and fibers

Why are vacuum cleaners becoming less popular for collecting hairs and fibers?

• They damage the evidence

• They are difficult to use

• They are too expensive

• They collect old evidence

What is the advantage of using oblique lighting in forensic investigations?

• It requires less training

• It is faster than other methods

• It helps identify recent evidence

• It is cheaper than other methods

What is a druggist fold used for in the context of evidence collection?

• To fold clothes

• To store chemicals

• To collect and store hairs and fibers

• To label evidence

What should be included on the back of a druggist fold?

• The type of evidence

• The date of collection

• The name of the collector

• Information about the evidence source

Which tools can be used to collect hairs and fibers?

• Scissors and tape

• Forceps and gloves

• Magnifying glass and ruler

• Tweezers and brushes

Why is it important to photograph evidence during collection?

• To enhance the evidence

• To make the process faster

• To provide a visual record of its original location

• To ensure it is not lost

What is a key consideration when using sticky notes for hair collection?

• Using a sticky note with a strong adhesive

• Using a colored sticky note

• Using a large sticky note

• Using a new sticky note for each collection

What should be avoided when using sticky notes for hair collection?

• Pressing too hard on the root of the hair

• Using sticky notes of different sizes

• Using sticky notes in a humid environment

• Using too many sticky notes

What is the final step after collecting hair with a sticky note?

• Labeling the sticky note

• Folding the sticky note

• Placing it inside a druggist fold

• Photographing the sticky note