ASIS International (ASIS) Professional Certified Investigator Practice Exam

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Which fingerprint pattern involves tracing spaces from delta to delta?

Loop
Whorl
Arch
Scar

The correct answer is: Whorl

The fingerprint pattern that involves tracing spaces from delta to delta is the whorl pattern. Whorls are characterized by the presence of two or more deltas that create a circular or spiral formation within the fingerprint. When examining a whorl, one can trace imaginary lines connecting the deltas to follow the curvature and complexity of the ridges, which is a distinctive feature of this pattern. The other patterns do not exhibit this characteristic. Loops, for instance, typically feature a single delta and do not have multiple deltas for tracing. Arches lack the delta structure altogether, as they are defined by their continuous ridge flow without any significant formations resembling deltas. Scar is not a recognized fingerprint category in terms of pattern classification; instead, it refers to marks left from injuries and does not relate to the standard ridge patterns used in fingerprint analysis.