Reagent and Small Particle Reagent (SPR) Quiz

What is a reagent?

• A chemical substance used to create a reaction with another substance

• A type of fingerprint

• A detergent solution

• A type of tape

What is Small Particle Reagent (SPR) primarily used for?

• Fingerprint detection on wet, oily, or dirty surfaces

• Cleaning surfaces

• Enhancing colors

• Removing stains

What is the main component of Small Particle Reagent (SPR)?

• Molybdenum Disulfide powder

• Sodium chloride

• Calcium carbonate

• Iron oxide

How do the powder particles in SPR react with fingerprint residue?

• They react with and attach to the lipids

• They dissolve the residue

• They change color

• They evaporate

What can be done with the prints after using SPR?

• They can be lifted from the surface with tape

• They can be washed away

• They can be painted over

• They can be erased

On which of the following surfaces has Small Particle Reagent (SPR) been used successfully?

• Paper

• Cloth

• Leather

• Rubber

Which material is NOT listed as a successful application for SPR?

• Cardboard

• Vinyl

• Leather

• Glass

SPR has been used successfully on items recovered from which of the following?

• Deserts

• Lakes

• Forests

• Mountains

What factor affects the results of the SPR process?

• Temperature

• Amount of perspiration residue

• Time of day

• Color of the surface

Which of the following is NOT mentioned as a surface for SPR use?

• Concrete

• Plastic

• Fabric

• Rock