Forensics chapter 6 test

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Find a delta in the print and circle it and then find the core and circle it. Then draw a line connecting the core and the delta. Then count from the core to the delta and you got yourself a ridge count.

Describe the steps in taking a ridge count from a fingerprint

True

True or false Fingerprints are a result of oil and secretions from skin mixing with dirt

False

True or false Fingerprints are formed deep within the dermis or the skin

False

True or false Fingerprints are gennerally considered ti be a form of class evidence

False

True or false Fingerprints of the left hand hand are mirror images of the fingerprints on the right hand

True

True or false IAFIS improves the speed and accuracy of fingerprint searches because electronically accesses fingerprints from local, state, and national agencies

True

True or false It is important to always photograph a fingerprint before you attempt to lift it

True

True or false It is necessary to obtain a full print from a suspect in order to compare fingerprint with a fingerprint found at the crime scene

False

True or false Plastic prints must be dusted or treated in order to to identify the ridge patterns

True

True or false The type of powder used to dust prints will vary depending upon the weather conditions when the print is lifted

At 10 weeks gestation (pregnancy)

Fingerprints are formed

Plastic fingerprints

Fingerprints that are actual indentations left in some soft material such as clay or putty are referred to as

By the 10th week of gestation Formed in the nasal layer of the skin Formation influenced by the environment of the fetus

How are fingerprints formed

Possibly you can alter them such as burning them however but is not permanent.

Is it possible to alter fingerprints, explain

True

Similar print or ridge patterns can also be found on the toes

A print is a whorl pattern h

The presence of two deltas in a fingerprint indicate

The current technology depends on humans to analyze the information and humans make mistakes

The use of fingerprints in identification is not perfect because


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