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GHS Forensics 4
| Question | Answer |
|---|---|
| A fingerprint is classified as this type of characteristic | Individual |
| Fingerprints have these types of general patterns that allow them to be systematically identified. | ridges |
| Percentage of people have loops? | 60% |
| Percentage of people who have arches? | 5% |
| Percentage of people who have whorls? | 35% |
| These are the simplest type of fingerprints that are formed by ridges that enter on one side of the print and exit on the other. No deltas are present. | Arches |
| The study of fingerprint identification is called? | Dactyloscopy |
| # of Arch type fingerprints categories | 2 |
| # of Loop type fingerprint categories | 2 |
| # of Whorl type fingerprints categories | 4 |
| These types of fingerprints have at least one ridge that makes (or tends to make) a complete circuit. They also have at least two deltas. | Whorls |
| If prints have more than two deltas or unusual patterns they are called? | Accidentals |
| These types of prints are made up of any two loops combined into one print. | Double Loops Whorls |
| These are impressions left by friction ridge skin from any part of the body on a surface, such as a tool handle, glass, door, etc. | latent |
| The method of collecting prints by revealing them with a black powder and then lifted with a piece of clear tape is called | Dusting |
| The cyanoacrylate fuming method is a procedure that is used to develop latent fingerprints on a variety of objects. This common method uses this household item | Superglue |
| This chemical bonds with the amino acids in fingerprints and will produce a blue or purple color. | Ninhydrin |
| The study of the uniqueness of friction ridge structures and their use for personal identification | Ridgeology |
| Points where the ridge structure change | minutiae |
| When these are found on two different prints to match, these are called points of similarity or points of identification. | minutiae |
| This is a computerized system capable of reading, classifying, matching, and storing fingerprints for criminal justice agencies. | AFIS |
| When using superglue to detect a print the fumes attach to these in the fingerprint | Amino Acids |
| Type of fingerprint made by ridge impressions left on soft material such as putty or wax. | plastic |
| Type of fingerprint made by impressions caused by the transfer of body perspiration or oils present on the finger or other part of body to the surface of an object. | latent |
| Type of fingerprint made after coming in contact with colored material such as blood, paint, grease or ink. | visible |
| Method which allows particles to stick to fingerprints to show their pattern. | dusting |
| This method can be used on a porous or non-porous surface like paper or cardboard. | Iodine fuming |
| The science behind fuming fingerprints | Iodine crystals will adhere to the print |
| Process which reacts with salt to show a blackish brown compounded fingerprint | UV Light |