Handwriting and Car Accidents
Handwriting comparison is considered an objective form of document examination
False it is subjective
Which photographic technique would be used to determine if a different pen was used to add additional amounts to a check?
Infra-red luminescence
Which separation technique would be used to compare a mixture of ink components in two different pens?
Thin Layer Chromatography
Electrical energy
-Potential Energy
The energy derived from electric potential energy or kinetic energy of the charged particles
-the stored energy an object has because of its position or state
Dynamic loads
Loads on a building that change during a relatively short period
A rebound collision
Bouncing off each other
Electrostatic detection
ESD, indented writing can be recovered three, four, or even more pages below the original writing
Which lighting / photographic technique is used to visualize indented writing?
Oblique illumination
Thermal energy
the energy contained within a system that is responsible for its temperature
Live Loads
Loads that can change due to: Occupancy (how many people live there), Weather, Building use
A collision where a car strikes an immovable object such as a tree and is embedded in the tree is called
An inelastic collision
Oblique illumination
low angle light, indented writing
Micro spectrophotometry
analyze color and chemical composition
Chemical Energy
Stored energy
Dead loads
Loads that don’t change ex. Walls, Supports, Roofs, Weight of floors
Because people’s handwriting changes over time and is subject to many variables it is considered as individual as their DNA
False - considered class evidence
Infra-red luminescence
you can see the difference in the inks because some inks fluoresce
Thin Layer Chromatography
Looking at the ink and separating the ink to see all the different colors that make up the black ink
Conservation of energy is which one of the laws of thermodynamics
The first one
Static loads
The basic weight of the building and its contents (furniture, people)
An elastic collision
the objects separate after impact and don't lose any of their kinetic energy, both momentum as well as kinetic energy are conserved
ESDA
Electrostatic Detection Apparatus
Polarized light microscopy
textile fibers, fibers, hairs, soil, and glass fragment
A moving bullet fired from a gun represents what type of energy?
Kinetic - moving energy
Loads on a building that change during a short period of time and are due to things like a short energetic weather event (hurricane, tornado) or occupancy are called:
Dynamic loads