Bailey Bio-Med Final Sem1

This method is used when finding links between evidence. Investigators evaluate the scene and document types of evidence that lead to another. Effective outdoors, indoors, large, and small crime scenes.
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This method is used when finding links between evidence. Investigators evaluate the scene and document types of evidence that lead to another. Effective outdoors, indoors, large, and small crime scenes.
Link Method
Used on large, outdoor crime scenes. Members of the search team are arranged at regular intervals, usually arm's length, and then proceed to search along straight lines.
Line (strip) Method
Image: Used on large, outdoor crime scenes. Members of the search team are arranged at regular intervals, usually arm's length, and then proceed to search along straight lines.
Used on large, outdoor crime scenes. Searchers follow the first line pattern and search in the same manner as the line method. Once the first line pattern is complete, searchers realign on the other line pattern.
Grid Method
Image: Used on large, outdoor crime scenes. Searchers follow the first line pattern and search in the same manner as the line method. Once the first line pattern is complete, searchers realign on the other line pattern.
Used on crime scenes that are comprised of readily definable zones, such as in houses or buildings. Teams are assigned small areas for searching, and then other appropriate searching methods are employed in each area.
Zone Method
Image: Used on crime scenes that are comprised of readily definable zones, such as in houses or buildings. Teams are assigned small areas for searching, and then other appropriate searching methods are employed in each area.
Used on crime scenes with no physical barriers, such as with open water, etc. Can either begin at critical point of crime scene or the outer-edge of the crime scene.
Spiral Method (Inward or outward)
Image: Used on crime scenes with no physical barriers, such as with open water, etc. Can either begin at critical point of crime scene or the outer-edge of the crime scene.
Used in small, circular crime scenes. Start at a critical point and travel outward along many straight lines from the set point.
Wheel/ray method
Image: Used in small, circular crime scenes. Start at a critical point and travel outward along many straight lines from the set point.
The four physical responses that may indicate that an individual is lying.
Heart rate, blood Pressure, respiration Rate and skin Conductivity
What are the independent variables in a polygraph test?
The things that will change based on the dependent variables.
What are the dependent variables in a polygraph test?
The data being measured and collected.
What are the three common pieces of trace evidence?
Hair, digital evidence, and fingerprints.
What can hair help you determine?Race, age, and genderWhat are the parts of the hair?Root, cuticle, cortex, and medullaWhat should you look for when observing hair?The growth cycle, diameter of hair, artificial treatment, and diseases and other hair abnormalities.What are the four pattens of finger prints?Arch, tented arch, loop and whorl.What are the 7 types of digital evidence to look for?Emails Text Messages Social media; comments, DM's, followers Browser history Location data Photographs VoicemailsWhat are the four componets of blood?Red blood cells, platelets, white blood cells and PlasmaWhat blood test presumes the presence of the questioned substance; also called a screening test?Presumptive testWhat test checks samples for hemoglobin to determine blood after the initial test is positive?Confirmatory TestWhat does it mean if your presumptive test results turn pink?It's a positive Kastle-Meyer.What does it mean if your presumptive test results turn yellow?It's a negitive Kastle-Meyer.What are the four blood types?A, B, AB and OWhen does Aggulation occur?When the same letter antibody is given to a blood sample.Why does type O blood never aggulate?Both anti-A and anti-B antibodies are present in type O blood.Why does type AB blood always aggulate?There are no antibodies present in type AB blood.What are the building blocks of DNA called?NucleotidesWhere do Nucleotides link?HelixHow many Helix does it take to create a strand of DNA?Two!What are the four bases of DNA?Adenine (A), thymine (T), guanine (G), and cytosine (C).What binds the bases with their complementary base?PrimersWhat are the corresponding pairings for DNA bases?A/T---T/A---G/C---C/GWhat are examples of cells?Liver cells, skin tissue cells, nerve cells etc. Bacteria are single-celled organisms.How do you know if something is a cell?If it has an organelle.What are the two types of cells?Eukaryotic cells and prokaryotic cells.What do eukaryotic cells make up?Eukaryotic cells make up plants, animals, fungi, and protists.What do prokaryotic cells only include?Bacteria, which don't have a nucleusHow many chromosomes are in a healthly human cell?46 chromosomesWhat are the loose DNA strands found in Eukaryotic cells that wind around proteins?HistonesWhat do histones create?ChromosomesWhere are places where DNA can be found?White Blood Cells Bone Hair Preserved Body Parts Clothing and Fibers Saliva/Body FluidsWhat is the process that creates millions of copies of DNA?Polymerase Chain Reaction (PCR)What do restriction enzymes do?Fight against viruses and cut DNA at specific locations.What is the first step in DNA extraction?Breaking open the cell and nuclear membranes.