Fingerprint Analysis Questions and Answers Solved Correctly

whorl, loop, and arch - 3 basic types of fingerprints plain and tented - arch is further broken up into tented arch - has a triangle in the center plain arch - smooth hills whorl - target in center with circles expanding out loop - has a loop and a small, secondary triangle deltas - whorls have 2, loops have 1, and arches have 0 patent prints - fingerprints that are easily spotted without the use of magnesium powders, ultra violet lights or chemicals. Blood, ink, oil or on surfaces such as glass, wooden door frames or paper. latent prints - created because the fingers have tiny outlets for the expulsion of sweat and these outlets pick up salts, oils and tiny particles of dirt. visualised using magnesium powder, to illuminate them. prints can be photographed or 'lifted' using a variety of different tapes. chemicals can be used in order to show up these otherwise invisible prints. One such chemical is Cyanoacrylate, Iodine and Silver Nitrate. impressed prints - also called plastic prints and are indentations left in soft pliable surfaces, such as clay, wax, paint or another surface that will take the impression. They are visible and can be viewed or photographed without development. An area of as little as 1/4" square - how much of the print is needed for identificationulnar- loops flow to little finger (tail) radial- loops flow to the thumb - two different types of loops and the difference between them