Glossary

=Definitions=

**Refraction**- is based on the change in velocity that slows and bends the light at a known rate **Visible Print**- are impressions that are made when fingers touch a surface that was previously touching another substance with colour. **Wavelength**- the distance between waves and crests in a spectrum of light **X-ray defraction**-test that illustrates how elements combine to form a substance, using beams of X-rays.
 * Deflagration-** characterized by a rapid rection that produces heat and light causing a disruption of a surrounding area. This is typically linked with a low intensity explosive.
 * Dermal Papillae**- is a boundary of cells that separates the dermis and epidermis. It also determines the forms of ridge patterns on the skin
 * Dermis-** inner surface of the skin
 * Detonation**- is the creation of a shock within an explosive, that breaks the chemical bonds leading to a build up of heat and gases.
 * Dispersion-** the separation of light into its original wavelengths
 * Epidermis**- outer portion of the skin
 * Frequency**- is the number of waves or crests that are present over a period of time
 * Gilbert Murray**-former president of the California Forestry Association who was killed in a mailed bomb sent to him in 1995.
 * Individual Characteristics-** properties of evidence that can be attributed to a common source with an extremely high degree of certainty.
 * Ion Mobility Spectrometer**- a poratble handheld detector uses a vacuum to collect explosive residues from susect surfaces.
 * Infrared spectrophotometry**-provides enough characterisitics to identify a distinct substance.
 * Manifesto-** a public declaration of intentions, opinions, objectives, or motives
 * Microspectrophotometer**- allows a forensic analyst to view a particle under a microscope with a beam of light directed at the item to obtain its absorption spectrum
 * Motive-** something that causes a person to act in a certain way, do a certain thing, etc.; incentive