Latent Print Examiner Skills Practice Test

These questions are part of the practice quiz. Start practicing

• Which area of the foot is not considered a pattern zone for latent prints?
• What are loops that flow in the direction of the ulna bone called?
• What type of reagent is Physical Developer (PD)?
• Why is it essential to follow removal instructions for separators on hinge lifters?
• What layer's infrastructure can be damaged when injury or disease penetrates to the dermal papillae level?
• What techniques have been suggested for recovering latent fingerprints on human skin?
• Leucomalachite green is used as a chemical test for which of the following?
• What is generally a key factor in selecting a latent print development technique?
• What does the term 'spur' refer to in friction ridge details?
• What photographic process relies on the formation of silver and a ferrous/ferric redox couple for fingerprint imaging?
• Which method first reported the use of magnetic fingerprints?
• What element is primarily used in the Fuming Gun Method for fingerprinting?
• What is the fingerprint classification for a print that contains only whorls?
• What solvent is used in the preparation of Ninhydrin to prevent ink runnage on paper?
• What are "red flags" in print analysis?
• Silver Nitrate reacts with which component found in fingerprint deposits?
• What is palmar flexion crease identification primarily used for?
• What does edgeoscopy involve in the context of friction ridge comparison?
• What can be done to fingers that are tightly clenched due to rigor mortis during fingerprinting?
• If a whorl appears in either the right thumb or right index finger space, what value is assigned to that space on a fingerprint card?
• What color does Small Particle Reagent typically develop on a fingerprint?
• Which individual implemented the French Bertillon Anthropometric Identification System in La Plata, Argentina?
• Which scientist first noted the uniqueness of friction ridge patterns?
• What is the main purpose of first level detail in the identification process?
• What does NCIC stand for?
• Why would a forensic examiner choose to use Ninhydrin over other reagents?
• Which two groups can the layers of skin cells in the volar areas be divided into?
• Which term encompasses the analysis of the size and quality of identifiable prints?
• What is the primary purpose of using a fuming cabinet in latent print development?
• Which metals are primarily used in the Vacuum Metal Deposition process?
• When sequence is maintained in fingerprint comparison, the weight placed on each area of comparison is deemed to be?
• Which of the following are commonly used devices for lifting powdered latent prints?
• What should be done before applying chemical techniques for developing latent prints on suspected blood stains?
• If simultaneous fingerprints are developed in a group, what is the best procedure for lifting?
• What is the first step in recovering latent prints from dusty surfaces?
• Which method is effective in applying Ninhydrin to latent fingerprints?
• What is a common outcome when using fluorescence examination on latent prints?
• What colored deposit does Physical Developer produce when reacting with sebaceous sweat?
• Which of the following is NOT a method used in latent print enhancement?
• What happens to a print deposited on a soft substrate?
• What is one method through which iodine is applied for fingerprinting?
• What technique is not typically used for developing latent prints on paper surfaces?
• What kind of surface is vacuum metal deposition most effective on?
• What is the primary source of oils and fats found in perspiration?
• When examining a latent print, which factor is NOT typically part of the analysis?
• Which light sources are better for developing latent prints compared to regular room light?
• What is the role of bleach in fingerprint development?
• Hale's islands and branchings refer to which major pattern in friction ridges?
• How long does it generally take for Ninhydrin treated fingerprints to fully develop?
• What happens to adjacent ridges when one ridge ends?
• How should silver nitrate solutions be stored if kept for a long time?
• What is the large cushion area at the base of the thumb called?
• What are alternative process names for Gentian Violet?
• What level of ridge detail is associated with intrinsic or innate ridge formations?
• What type of fingerprints does superglue development primarily enhance?
• What materials can autoradiography be used to develop and record latent fingerprints?
• Who performed the comparison tests involving palmar flexion creases that were reported in 1991?
• How are the majority of fingerprint patterns categorized?
• Fingerprints that are lifted from an object using tape are commonly referred to as what?
• What sequence of latent print development techniques is commonly used to develop prints from porous materials?
• Phosphors are classified as what type of compounds in fingerprinting?
• What does "imbrication" refer to in terms of friction ridges?
• What is the main advantage of rubber lifters compared to other lifting devices?
• Which type of powder is known to be more sensitive for latent print development than most others?
• How many ridge characteristics are generally considered sufficient to illustrate an identification on a chart?
• During which months of fetal life do friction ridges begin to form on the human fetus?
• What type of structural units make up the construction of friction ridges?
• What can accelerate iodine developed latent prints?
• What method did John Dillinger use to try to remove his fingerprints?
• Which technique can be used to recover fingerprints from dust?
• A ridge count plus "50" in NCIC classification indicates what type of fingerprint pattern?
• A triradius in most classification systems is referred to as what?
• What characterizes wet prints deposited when the friction ridges are wet?
• What is an alternative name for superglue in latent print development?
• What varies in friction ridge patterns but is noted for being non-duplicative?
• What is considered the best latent print development technique for non-porous surfaces contaminated with grease?
• Who is noted as the first European to utilize friction ridge prints for identification?
• Which preservation method is essential for prints that cannot be enhanced further?
• What observation can be made regarding the age of a fingerprint through its reaction with detection processes?
• Intrinsic ridge shapes and relative pore locations are known as what?
• Which technique is best for preserving plastic fingerprint impressions?
• What is a satisfactory clearing solution for both ninhydrin and silver nitrate stains?
• By increasing the aperture size of a lens from f/11 to f/8, how does this affect light transmission?
• Which of the following best describes edgeoscopy in fingerprint comparison?
• What is the methodology used for friction ridge identification?
• What possible appearance do prints have when deposited with a lack of matrix?
• What kind of fingerprints can silicone rubber casting accurately preserve?
• Where should silver nitrate solution be stored for optimal effectiveness?
• Which formula does the method of palmar flexion crease identification follow?
• What result can occur when the skin is damaged to the extent that both the epidermis and dermis are disturbed?
• Mary Holland contributed to which field of fingerprint research?
• What can Gentian Violet interfere with during a forensic examination?
• What latent print development technique was superseded by the Ninhydrin/Physical Developer method?
• The original collection of identification records has expanded from how many records?
• What color image is formed when using iodine vapor on latent fingerprints?
• Which novel procedure did the U.S. Army Criminal Investigation Laboratory introduce in 1982 for processing latent prints?
• What is a key characteristic of latent prints etched in metal?
• Which chemical has been known to effectively develop print impressions on human skin?
• What is a commonly used light source when searching for latent prints?
• Which compound is absorbed by latent print residue but not considered a chemical reaction?
• When making lifts with transparent tapes, how do these lifts compare to inked impressions?
• What is defined as the second or middle joint of the finger?
• Who is credited with reporting the use of DFO for fluorescent detection of latent prints on paper?
• What percentage of fingerprint patterns are categorized as loops, whorls, and arches combined?
• What is the standardized size of fingerprint cards?
• What component does Small Particle Reagent adhere to in fingerprint deposits?
• Friction ridge identification relies on the agreement of what?
• When analyzing friction ridge clusters, what anatomical feature assists with digit determination?
• Who coined the term "ridgeology"?
• Which latent print development technique is known for being effective on wet surfaces?
• The study of the effects of disease and genetic aberrations on friction ridges is known as?
• A film with an ASA speed rating of 200 is how many times faster than one with a rating of 50?
• Small Particle Reagent (SPR) can be used on which type of surfaces?
• Which chemical reacts with amino acids in fingerprint deposits?
• What is the function of iodine in fingerprint development?
• What procedure is used to predetermine the quality of results when developing latent prints with powder?
• Which statement about palmar flexion crease uniqueness is accurate?
• Which layer of skin serves as the foundation for the above-lying epidermis?
• What should always be used inside a fuming cabinet for latent print development?
• Which of the following can Ninhydrin's application methods include?
• Why are charts created during the fingerprint examination process?
• Fingerprint hinge lifters are made from .005 Mylar with a special adhesive. What covers the adhesive side of the lifter?
• What is critical for the selection of methods in latent print examination?
• What might a print on a very dirty surface lack?
• What percentage of all fingerprint patterns are loops?
• Sweat glands, found on almost all surface skin areas, are also known as what type of glands?
• In what year did Argentina become the first country to abolish the anthropometry system?
• Which dye is effective for the development of latent fingerprints on adhesive surfaces?
• What is a key characteristic of fingerprint hinge lifters?
• What does the acronym ACE-V stand for?
• What percentage of all fingerprint patterns are arches?
• What is referred to as the latent print examiner's "chemical workhorse" for porous materials?
• What aspect of friction ridges is emphasized in professional analysis?
• What is the NCIC code for missing or amputated fingers?
• In preparing charts for fingerprint identification, who is ultimately responsible for the content of the chart?
• The human eye can typically detect how many various shades of gray?
• What is an effective clearing solution for both ninhydrin and silver nitrate?
• Which technique is often used for lifting latent prints from porous surfaces?
• What are the two main components of the solids found in eccrine sweat?
• What are "Luma-lite" and "Polilight" categorized as?
• What do fingerprint powders aid in during the print development process?
• Physical Developer is very effective for developing latent fingerprints on paper that has been:
• What substance in perspiration reacts chemically with silver nitrate to form silver chloride?
• In fingerprint analysis, type lines are defined as which of the following?
• What effect do scars have on fingerprint identification?
• Which process is NOT typically associated with latent print development?
• What is the term for the comparison of relative pore locations?
• Which ridge detail is typically associated with the classification of fingerprints?
• What is the primary advantage of using silicone rubber casting in fingerprint analysis?
• A delta may be represented as which of the following?
• Which individual was the first to confirm ridge permanency in fingerprints?
• What happens to the amount of light reaching the film when the shutter speed is advanced from 1/50 to 1/100 second?
• Eccrine sweat is composed of approximately how much water?
• Which divisions can the classification formula be composed of?
• What is a common issue for prints developed with Ninhydrin?
• How can deposition conditions impact the final quality of a fingerprint?
• What could cause a ridge break in a friction ridge print?
• What characteristic do 3rd level ridge details provide in the context of fingerprint analysis?
• What role does vacuum-coating technology play in fingerprint development?
• What is the NCIC code for a tented arch?
• Which latent print development technique is effective on non-porous surfaces?
• Superglue is most suitable for which types of surfaces?
• What covers the surface of the dermis?
• Which term is synonymous with "Anthropometry" in the context of identification systems?
• Which characteristics are used for individual fingerprint identification?
• Which solvent is known to cause the greatest damage to inks in ninhydrin solutions?
• Which method is commonly employed for visualizing prints on non-porous surfaces?
• Which methods can be used to accelerate the development of Ninhydrin treated prints?
• What term describes the area or finger joint located adjacent to the palm?
• The term used for characteristics in friction ridge detail that lead to identification is called?
• Who is known as the "Father of Canadian Fingerprinting"?
• In fingerprint development, what does the term 'contrast' refer to?
• Which reagent is typically used for fluorescence detection of latent prints?
• What term describes the formation when two bifurcations on the same ridge join their branches?
• What is the fingerprint classification for a print without whorls?
• Who is credited with the initial suggestion linking fingerprints found at crime scenes to finger impressions in a collection?
• What type of sweat glands primarily produce eccrine sweat?
• What type of materials does Silver Nitrate primarily respond to in fingerprint development?
• What is the typical concentration range for silver nitrate solutions used in fingerprint development?
• Which method is recommended for applying thermoplastic powders to a surface?
• What product is formed by the stain of proteins present in blood using Amino Black?
• What related sciences provide foundational knowledge for ridgeology?
• What is commonly used to accelerate the development of superglued prints?
• What are the essential elements of a loop fingerprint?
• What method led to the significant advancement of fingerprint identification in law enforcement?
• Who is credited with the practical interest in fingerprints in India for wage identification?
• Which type of material presents the greatest challenge for detecting and developing latent fingerprints?
• Which scientist is credited with the first microscopic examination of skin patterns in relation to fingerprints?
• Which of the following patterns are recognized in fingerprint analysis?
• When photographing latent fingerprints on a curved surface, which factor must be considered for exposure settings?
• What is the optimum relative humidity percentage for post-processing ninhydrin-treated latent prints?
• In which cases have latent prints developed by heat been used, despite the impractical nature of the technique?
• What fine particles is Small Particle Reagent composed of?
• Which development method is effective for fingerprints on non-porous surfaces?
• What is one of the roles of ridgeology in personal identification?
• What method is recognized as the first scientifically developed system for criminal identification?
• What makes the combination of heating and humidification effective for fingerprint development?
• Which reagents are reported to enhance bloody fingerprints effectively?
• How do the essential characteristics of fingerprints aid in personal identification?
• Which technique is best for enhancing prints found on porous surfaces?
• Which latent print development technique is used specifically to process nonporous materials that are wet?
• What layer of the skin is referred to as the outer layer of friction skin?
• What is a potential effect of holding a round bottle when depositing a print?
• Which technique utilizes finely powdered lead to visually record latent print images?
• It is considered impossible to do what during the analysis of friction ridge prints?
• The delta in a fingerprint is located at or nearest to which part of the ridge?
• To develop latent fingerprints found on plastic surfaces, which technique is considered the best?
• What are loops that flow in the direction of the radius bone called?
• What factors contribute to the size of the gray area concerning poor-quality prints?
• When using ninhydrin to develop latent prints, which filter should be used for photography?
• What type of measurements are made during the friction ridge comparison process?
• Who is recognized for developing the anthropometric identification system?
• What is the basis for the objective nature of the friction ridge comparison process?
• What types of fingerprints will fluoresce under appropriate illumination?
• According to Bluhm and Lougheed, what is the ideal temperature for preserving latent fingerprints on nonporous surfaces?
• What is a trifurcation in the context of friction ridges?
• What common mistake should be avoided when presenting charts in court?
• What component in the latent print deposit does superglue primarily react with?
• The core of a loop fingerprint is placed upon or within what structure?
• What is the function of the Polilight in latent print examination?
• Rubber lifters are more versatile than lifting tape and hinge lifters. They are particularly useful for lifting prints from what kind of surfaces?
• Which statement best describes the nature of friction ridges?
• Which condition can significantly enhance the quality and contrast of ridge detail when using Ninhydrin?
• What type of fingerprint is left when a finger presses against a surface with sufficient force to transfer some moisture or oil?
• What does a classification of 32/32 signify for fingerprints?
• Luminol is a highly sensitive chemical test for what substance that produces a chemiluminescence of fifteen minutes duration or more?
• A latent print is not removable from a surface. What is lifted during the process?
• What is the purpose of photographing a latent print prior to lifting?
• Superglue polymerizes on certain latent fingerprints to produce which colored deposit?
• What is the inherited condition called when ridge units are present but do not fuse to form friction ridges?
• Small Particle Reagent forms what color deposit upon application?
• Which technique is known for staining fatty constituents of sebaceous sweat?
• For which type of material is Ninhydrin primarily used?
• Which four basic variables compose a photographic film exposure?
• Why is it challenging to determine the age of fingerprints?
• How should technical accuracy be ensured in presented charts?
• What is the primary reason for the loss of latent prints according to common causes?
• What type of camera is the Polaroid CU-5?
• Which type of substrate allows for the creation of molded impressions?
• What is the primary purpose of using Ninhydrin in latent print development?
• Which laser procedure has been developed for the examination of skin in latent print analysis?
• What is the most common error made when taking fingerprints?
• Which of the following is a method used to visualize latent prints?
• What is another name for Amino Black?
• What is an alternative name for "1,8-diazafluoren-9-one"?
• What is the correct sequence for developing latent prints on porous materials?
• Which chemical substance used in latent fingerprint work is considered particularly dangerous?
• What happens to the image produced by iodine vapor if it is not fixed?
• What must be done to opaque lifters in order to make comparisons with inked impressions?
• Which of the following is NOT a component of the eccrine sweat solids?
• What are immature ridge formations called that develop like normal ridges?
• What is a key feature of Physical Developer's chemical reaction?
• Who published findings on friction skin using a microscope in Italy?
• What structure forms when two ridges merge to fill a discontinuity?
• At approximately how many weeks gestation does the first noticeable development of friction skin occur on volar surfaces?
• What distinguishes pressure distortion from deposition distortion?
• Freon 113 is a solvent that has been used to produce which of the following?
• What problem does Ninhydrin using a freon solvent virtually eliminate when processing porous materials?
• What type of skin cell layer is responsible for the protective barrier of the skin?
• What component of a fingerprint does Ninhydrin react with?
• What is the main characteristic of Ninhydrin as a fingerprint reagent?
• What is the primary purpose of textured surfaces in fingerprinting?
• Vacuum Metal Deposition is especially suitable on which type of surface?
• Which methods can Ninhydrin be applied through?
• What does the presence of a delta indicate in fingerprint analysis?
• What effect can dirty substrates have on a friction ridge print?
• What type of surface is optimal for using a technique like Ninhydrin?
• For better clarity, in which direction should ridge characteristics be numbered on a chart?
• When was the FBI Identification Division established?
• In 1893, who solved the Rojas murder case using fingerprints?
• Ninhydrin has been known to develop prints that are how many years old?
• What completes the definition of a double loop fingerprint?
• A tenprint card with a primary classification of 32/32 means all prints are what type?
• Who made significant contributions to fingerprint identification in South America?
• Which type of surface is best suited for the application of Physical Developer?
• What is the deepest layer of skin cells that is adjacent to the dermis called?
• Which solvent is considered to cause the least damage to inks when using ninhydrin solutions?
• Incipient ridges are also known as what type of ridges?
• What does the term "sequence" refer to in friction ridge identification?
• What percentage of all fingerprint patterns are whorls?
• Why is understanding fingerprint patterns important for identification?
• What is the space value for the left ring and left little fingers?
• When repeating the lifting process, what happens to the quality of each successive lift?
• Which of the following is NOT a characteristic of third-level ridge detail?
• What is the primary purpose of using Sudan Black in latent print development?
• The opinion of identification in fingerprint analysis is typically regarded as?
• What is often one of the first processes used in the examination of fingerprints?
• The inner layer of friction skin is typically referred to as what?
• Which structure primarily helps with the formation of fingerprints?
• Which of the following methods can be used to apply Ninhydrin solutions?
• Who was the first American fingerprint lecturer?
• How can silver nitrate images be developed?
• Why is it important to space ridge numbers evenly on a chart?
• What is the name of the final colored compound produced through the treatment of Ninhydrin?
• Which method is used to enhance the visibility of fingerprints on a variety of surfaces using chemicals?
• What does the matrix of a friction ridge print consist of?
• What can pores along friction ridge surfaces indicate?
• How does deposition pressure typically affect the shape of a friction ridge?
• What type of fingerprint development is often used in low-light conditions to enhance visibility?