ModuleSixLessonOneNotesOutline

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Module Six Lesson One Notes Outline Student Name: Introduction 5 pts Write a brief (2-3 sentences) response the fingerprint video summarizing the most important uses of fingerprints in forensics. Fingerprints are very useful when identifying suspects or victims in a case. They are individual so its reliable and there are many details to observe. Vocabulary 15 pts Using the directions in the course, create your vocabulary review below for the following terms: bifurcation, dactyloscopy, loop, arch, plastic print, latent, ulnar, visible print, friction ridge, patent print, radial, minutiae, delta, ten card, whorl Bifurcation- I noticed that this man has a lot of bifurcation within his fingerprints. Dactyloscopy- The students were currently learning about dactyloscopy. Loop- They observed the loop in the fingerprints to compare it with the other sammples. Arch- They analyzed the fingerprints and found that it was an arch pattern type. Plastic print- Plastic prints are a lot easier to identify than most fingerprints. Latent- Next the investigators dusted for latent prints. Ulnar- Ulnars open toward the pinky finger. Visible print- Visible prints are recognized as the same thing as patent prints. Friction ridge- The marks left behind at crime scenes (from fingerprints) that we see are the friction ridges. Patent print- Patent prints were found on the car door. Radial- The radial opens towards the thumb. Minutiae- The minutiae is also called a ridge and describes the details that make everyones fingerprints different. Delta- They discovered the delta fingerprints had been in multiple areas of the crime scene. Ten card- Next, they filled out the ten card. Whorl- The tests revealed that the bulls-eye pattern was a whorl fingerprint.

Lesson Notes 50 pts Using the directions in the course, create your notes for each big idea below: Big Idea 1: No two people have the same fingerprints. ● When you are born, you already have the fingerprint that you’ll keep for your entire life. ● Even identical twins do not have the same fingerprints. This is because they interact differently with the environment in the uterus. ● No one has the exact same DNA, so no one can be the same when it comes to any attribute (such as fingerprints). Big Idea 2: There are three main types of print patterns. ● The three main types of fingerprints include whorl,loop, and arch. ● Arch has two sub categories known as a tented arch or a plain arch. ● Type is determined by the lines, bumps, ridges, and shape of fingerprints. ● Recognizing small details within the lines can help differentiate these fingerprint types. Big Idea 3: The Henry Classification system allows forensic fingerprint experts to quickly eliminate matches in a database. ● The henry Classification system assigns a value to each individual finger on a ten card which eliminates possible matches by adding up the number of whorls present and comparing them with other fingerprint samples. ● By simply adding the fingerprints numbers, it makes it easier and more efficient to sift through suspects prints. ● Even numbers are always in the numerator, odd numbers are the denominator. ● Originally created in the 1800s to aid criminal identification in Britain. Big Idea 4: Second and third level details of fingerprints are important in making a positive fingerprint match.

● Mistakes are easily made with the simple comparisons. While no two people have the same prints, they are often similar enough to mix up. ● Second level details include minutiae, bifurcations, ridge endings, island/dots, deltas, cores, scars. ● Third level details include pores and spaces between ridges. These are considered the highest level of detail available at the time. ● These details can change which suspect is found guilty or innocent, making them very important. They dive deeper than the standard first level comparisons. Big Idea 5: The way in which a fingerprint is available determines the detection and collection of the print and whether that print can be added to AFIS. ● The Automated Fingerprint Identification system (AFI) is a computerized system that stores/receives data on fingerprints. ● High resolution digital latent prints must be visible to be added to the IAFI. ● Fingerprints are processed locally and forwarded to a state/federal agency to be processed. Reflection 5 pts Write 2-5 sentences reflecting on what you have learned in this lesson. Your reflection may include: connections to other classes or content within this class, connections of the material to your life, questions you have after learning this content, or thoughts/ideas/comments you had in response to this learning. In this lesson I learned more about the terms for the many details found on a fingerprint. Throughout the notes I was just looking at my own fingerprints like “oh okay a loop!” which was fun. Presentation Screenshot(s) 20 pts Paste your screenshot(s) of any quizzes or scored interactive work in the presentation below.

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