Question

How do Alternative Light Sources enhance the search for all potential evidence items? a) UV or black light can reveal hidden biological stains such as urine and saliva b) Oblique lighting can reveal items by casting shadows c) All of the above d) None of the above

Answer 1

Alternative Light Sources, such as UV or black light and oblique lighting, play a critical role in forensic investigations by revealing hidden biological stains and enhancing visibility of evidence through shadow casting.

This correct answer is C)

Step-by-step explanation:

Alternative Light Sources (ALS) enhance the search for potential evidence items in various ways. One way an Alternative Light Source enhances evidence search is through the use of UV or black light, which can reveal hidden biological stains such as urine and saliva.

This is due to certain substances' ability to exhibit fluorescence when exposed to ultraviolet light, causing them to glow in characteristic visible wavelengths.

Additionally, oblique lighting techniques are used to reveal evidence items by casting shadows. This method can help find impressions or residues that might otherwise be overlooked if viewed under direct light.

Therefore, the correct answer to the question is: c) All of the above.

This correct answer is C)