Advanced Techniques & Methods Flashcards
7 cards from real CFP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Advanced Techniques & Methods flashcards as text
Which of the following best describes the purpose of High Dynamic Range (HDR) imaging in forensic photography?
Answer: To capture detail in both deep shadows and bright highlights that exceed a single exposure's range
HDR combines multiple exposures to retain detail across the full luminance range of a scene, which is essential when forensic details exist in both very dark and very bright areas.
When photographing a gunshot residue (GSR) pattern on clothing, the primary photographic goal is to:
Answer: Document the stippling and soot distribution pattern with scale for range-of-fire analysis
Accurate documentation of the GSR stippling and soot distribution pattern with a scale allows forensic experts to estimate the muzzle-to-target distance.
A forensic photographer is asked to document a digital device screen displaying potential evidence. The correct approach includes:
Answer: Capture the screen without flash using the device's own ambient display light and note the device's brightness setting
Photographing a digital screen without flash avoids glare and reflections; documenting the screen brightness setting ensures the image is reproducible and legally defensible.
In forensic documentation of a vehicle accident scene, which combination of photographs is required before any vehicle is moved?
Answer: Aerial drone overview, all four cardinal perspectives of the vehicle, final resting positions of all vehicles, and roadway evidence
Comprehensive accident documentation requires overhead/aerial perspective, four-corner vehicle views, final rest positions, and all roadway evidence (skid marks, debris) before vehicles are disturbed.
When photographing fluorescent evidence under an Alternate Light Source, the photographer typically wears orange-tinted goggles and uses an orange barrier filter because:
Answer: The filter blocks the ALS excitation wavelength and passes only the longer-wavelength fluorescent emission
The barrier filter blocks the excitation light while transmitting only the fluorescent emission wavelengths, allowing the camera and photographer's eye to see only the glowing evidence against a dark background.
Which metadata element embedded in a forensic photograph's EXIF data is most critical for establishing the time sequence of documentation at a scene?
Answer: Date/time stamp with time zone
The date/time stamp with time zone records when each photograph was taken, establishing the chronological sequence of documentation and correlating images with scene log entries.
A photographer needs to document a fiber evidence item on a dark fabric surface. To maximize fiber visibility without disturbing the evidence, the best technique is:
Answer: Oblique light from a fiber optic light source at a very low angle to create visible shadow relief
A fiber optic oblique light source at a very low angle creates directional shadows that make individual fibers three-dimensionally visible against the background fabric without contact.