Questions Flashcards
what is IAFIS?
integrated automated fingerprint identification system
what are 3 fingerprint principles?
unique, prints remain unchanged, have ridges
what is the most common pattern type?
loop
how do you determine whether loop is radial or ulnar?
depending if its on left or right from hand print
what are minutiae?
when ridge structure change
a ____ apears light, on a fingerpirnt image, and a ___ appears light
ridge, valley
when do fingerprints form ?
during 10th week
what is the inner layer of the skin?
dermis
what is the outer layer?
epidermis
what is the layer in between?
basal
what is difference between apocrine gland and eccrine glands?
apocrine is hair, eccrine are on hands and feet
what does ninhydrin react to?
amino acids in sweat
what do ridges turn after bing chemically tested on paper?
white
