Exam 6: Fingerprints

The ACE-V process requires an independent examination by a second examiner.

Describe the basic process used to "lift" a fingerprint. When should this procedure be used?

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)A class of fingerprints characterized by ridge lines that enter the print from one side and flow out the other side B)An inkless device that captures digital images of fingerprints and palm prints and electronically transmits them to an AFIS C)A square electronic dot that is used to compose a digital image D)A fingerprint impressed in a soft surface E)A class of fingerprints characterized by ridge lines that enter from one side of the pattern and curve around to exit from the same side of the pattern F)A system of identification of individuals by measurement of parts of the body, developed by Alphonse Bertillon G)A process through which a picture is converted into pixels H)A technique for visualizing latent fingerprints by exposing them to iodine vapors I)Ridge endings, bifurcations, enclosures, and other ridge details which must match in two fingerprints to establish their common origin J)A chemical reagent used to develop latent fingerprints on porous materials by reacting with amino acids in perspiration K)A class of fingerprints that includes ridge patterns that are generally rounded or circular and have two deltas L)A physical change from the solid directly into the gaseous state M)A fingerprint made by the deposit of oils and/or perspiration; it is invisible to the naked eye N)A silver nitrate-based reagent formulated to develop latent fingerprints on porous surfaces O)To emit visible light when exposed to light of a shorter wavelength P)A technique for visualizing latent fingerprints on nonporous surfaces by exposing them to cyanoacrylate vapors Q)A fingerprint made when the finger deposits a visible material such as ink, dirt, or blood onto a surface R)A verbal description of a perpetrator's physical characteristics and dress provided by an eyewitness -Fluoresce

The friction skin ridges:

What is primary classification of fingerprints and why is it important? Observe your fingerprints, and write out what pattern is shown on each finger. Calculate the primary classification your fingerprints fall into.

Protein residues are best developed into fingerprint impressions with:

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)A class of fingerprints characterized by ridge lines that enter the print from one side and flow out the other side B)An inkless device that captures digital images of fingerprints and palm prints and electronically transmits them to an AFIS C)A square electronic dot that is used to compose a digital image D)A fingerprint impressed in a soft surface E)A class of fingerprints characterized by ridge lines that enter from one side of the pattern and curve around to exit from the same side of the pattern F)A system of identification of individuals by measurement of parts of the body, developed by Alphonse Bertillon G)A process through which a picture is converted into pixels H)A technique for visualizing latent fingerprints by exposing them to iodine vapors I)Ridge endings, bifurcations, enclosures, and other ridge details which must match in two fingerprints to establish their common origin J)A chemical reagent used to develop latent fingerprints on porous materials by reacting with amino acids in perspiration K)A class of fingerprints that includes ridge patterns that are generally rounded or circular and have two deltas L)A physical change from the solid directly into the gaseous state M)A fingerprint made by the deposit of oils and/or perspiration; it is invisible to the naked eye N)A silver nitrate-based reagent formulated to develop latent fingerprints on porous surfaces O)To emit visible light when exposed to light of a shorter wavelength P)A technique for visualizing latent fingerprints on nonporous surfaces by exposing them to cyanoacrylate vapors Q)A fingerprint made when the finger deposits a visible material such as ink, dirt, or blood onto a surface R)A verbal description of a perpetrator's physical characteristics and dress provided by an eyewitness -Livescan

Which statement is true of a partial fingerprint?

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)A class of fingerprints characterized by ridge lines that enter the print from one side and flow out the other side B)An inkless device that captures digital images of fingerprints and palm prints and electronically transmits them to an AFIS C)A square electronic dot that is used to compose a digital image D)A fingerprint impressed in a soft surface E)A class of fingerprints characterized by ridge lines that enter from one side of the pattern and curve around to exit from the same side of the pattern F)A system of identification of individuals by measurement of parts of the body, developed by Alphonse Bertillon G)A process through which a picture is converted into pixels H)A technique for visualizing latent fingerprints by exposing them to iodine vapors I)Ridge endings, bifurcations, enclosures, and other ridge details which must match in two fingerprints to establish their common origin J)A chemical reagent used to develop latent fingerprints on porous materials by reacting with amino acids in perspiration K)A class of fingerprints that includes ridge patterns that are generally rounded or circular and have two deltas L)A physical change from the solid directly into the gaseous state M)A fingerprint made by the deposit of oils and/or perspiration; it is invisible to the naked eye N)A silver nitrate-based reagent formulated to develop latent fingerprints on porous surfaces O)To emit visible light when exposed to light of a shorter wavelength P)A technique for visualizing latent fingerprints on nonporous surfaces by exposing them to cyanoacrylate vapors Q)A fingerprint made when the finger deposits a visible material such as ink, dirt, or blood onto a surface R)A verbal description of a perpetrator's physical characteristics and dress provided by an eyewitness -Plastic print

Soft and porous surfaces are preferably developed by applying fingerprint powder or treating with Superglue.

Physical developer contains:

Which is NOT considered a porous surface?

Loops are the most common type of fingerprint patterns.

Prints that are not readily visible are commonly referred to as:

Ridge characteristics are also known as ________.

To permanently alter the fingerprint and produce scars, one must damage the:

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)A class of fingerprints characterized by ridge lines that enter the print from one side and flow out the other side B)An inkless device that captures digital images of fingerprints and palm prints and electronically transmits them to an AFIS C)A square electronic dot that is used to compose a digital image D)A fingerprint impressed in a soft surface E)A class of fingerprints characterized by ridge lines that enter from one side of the pattern and curve around to exit from the same side of the pattern F)A system of identification of individuals by measurement of parts of the body, developed by Alphonse Bertillon G)A process through which a picture is converted into pixels H)A technique for visualizing latent fingerprints by exposing them to iodine vapors I)Ridge endings, bifurcations, enclosures, and other ridge details which must match in two fingerprints to establish their common origin J)A chemical reagent used to develop latent fingerprints on porous materials by reacting with amino acids in perspiration K)A class of fingerprints that includes ridge patterns that are generally rounded or circular and have two deltas L)A physical change from the solid directly into the gaseous state M)A fingerprint made by the deposit of oils and/or perspiration; it is invisible to the naked eye N)A silver nitrate-based reagent formulated to develop latent fingerprints on porous surfaces O)To emit visible light when exposed to light of a shorter wavelength P)A technique for visualizing latent fingerprints on nonporous surfaces by exposing them to cyanoacrylate vapors Q)A fingerprint made when the finger deposits a visible material such as ink, dirt, or blood onto a surface R)A verbal description of a perpetrator's physical characteristics and dress provided by an eyewitness -Pixel

Discuss how fingerprints on the following surfaces should best be visualized, documented, and preserved. a. Latent fingerprint on a silver-colored butter knife b. Visible fingerprint (black)on the white wall of a house c. Latent fingerprint on a large manila envelope

The shape of the boundary formed from dermal papillae determines the fingerprint pattern.

The three kinds of crime scene fingerprints are visible prints, latent prints, and ________ prints.