Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
forensics final
| Question | Answer |
|---|---|
| what causes a bullet to spin as it is fired | the rifling |
| Samuel found a suspicious crowbar at a crime scene that looks like it might have struck the kitchen table. What should Samuel do? | Perform a Geiss Test on both the crowbar and the table |
| The trigger guard & the checkered portion of the grip are the areas of a gun that are least likely to contain fingerprints that are least likely to contain fingerprints that could be damaged | true |
| when handling & packaging a bullet from a crime scene, investigators must be careful to preserve any trace evidence that might be present, such as paint or fibers. | true |
| Tricia is taking notes about a gun she found at a crime scene. what information Must be described in her notes? | the position of the gun's safety & hammer |
| Mohammed has found a firearm at the crime scene. it has three rounds of ammunition. what should he do? | put each round in a separate envelope |
| what is true about the use of class characteristics & firearm evidence? | investigators can determine the manufacturer & the gun type |
| Meera needs to remove a gun from a crime scene to take it to the lab. what is the Best way for her to complete this process? | she should pick the gun up using the trigger guard |
| What is Most likely to happen when a bullet is fired 12-18 inches from a target? | it leaves a halo of smoke around the bullet hole. |
| the officer found an unidentified on the muzzle of the gun. where was the fiber found? | on the end of the gun's barrel |
| there are two suspects in a shooting investigations. bullets are recovered from the crime scene. both suspects own guns, the guns where taken. how will they see if one of the guns where used. | they will fire bullets from the guns to match with the found bullets. |
| bore | gun barrel |
| caliber | the diameter of a bullet |
| distance determination | the process of estimating the distance between where a shot is fired and its target |
| greiss test | used chemicals to develop gunpowder residue patterns, particularly around bullet holes. |
| grooves | the low areas cut into the barrel |
| lands | the raised areas between the grooves |
| rifling | the spiral grooves formed in in the bore of a firearm barrel that spin to the projectile when it is fired |
| serial number | numbers impressed on a good for identification purposes |
| tool mark | when a tool comes into contact with another surface, like a door, and creates a scratch or impression. |
| a suspect confessed to the killing of a victim 25 years ago and throwing their body in a wooded area. when investigators search the area for evidence, what is Most likely to occur? | they will find signs of the bone of the surface of the ground. |
| Carlos is a forensic anthropologist. he discovers the bones of a human whose tibia had stopped growing but whose clavicle appears to have been still growing. what conclusion can he most likely make about this person's age at their time of death? | this person was between 16 and 25 years old. |
| skeletonization often occurs when animals and insects eat the soft tissue off of bone | true |
| what is true about determining the time of death of a victim? | forensic scientists can often provide an estimated time of death |
| abed knows that the victim died after they ordered a pizza to delivered, but before the pizza arrived. based on this observation, what is abed using to estimate the time of death? | indicative acts |
| all forensic autopsies important information about specific crimes | false |
| the remains of a human body were found unburied in the woods. they were completely skeletonized. based on this evidence, what can an investigator most likely conclude? | the body has been there for about eight months |
| Regina did a research project on John Wayne Gacy. what did she most likely learn about him? | he committed 33 murders |
| a suspect claims that they and the victim ate a large dinner together about three hours before the victim died. what would the autopsy most likely show if the suspect telling the truth? | there would be some food in the victims intestinal tract. |
| forensic anthropologists are asked to determined if skeletal remains are recent or ancient. | true |
| which of the following conclusions was least likely to made by evidence analyzed by a forensic anthropologists | the victim has been dead for about three days. |
| Julio is preparing a virtopsy. what does this task most likely involved | he is using an MRI machine to image the victim |
| adiopocere | the creation of waxy substance when there is hydrogenation of the fat in the body |
| algor mortis | the gradual cooling of the body following death. |
| body farm | a research facility where human decomposition can be studied in a variety of settings |
| cause of death | the medical problem that leads to death, such as blunt force trauma, internal bleeding, blood loss, or gunshot. |
| forensic autopsy | post mortem examination |
| indicative acts | actions or behaviors that may have taken place before death( or the lack of) |
| liver mortis | the settling of blood in the lowest parts of the body |
| manner of death | this may be suicide or homicide in a forensic autopsy, as opposed to disease or other natural cause. |
| mechanism of death | refers to any instrument or weapon used in a death, such as a knife or firearm. |
| mummification | a drying of the body and its tissues |
| putrefaction | occurs because of bacterial activity and includes bloating, gas formation, loss of hair and nails, and skin slippage. |
| rigor mortis | the relaxation of the body's muscles after death followed by gradual of rigidity in the muscles |
| taphonomy | the study of what happens to the remains of an animal from the time of death to the time of discovery |
| Manuel has to create a presentation about the work of Dr. Alec jefferys for his FS class. what is the most appropriate title for his presentation. | describing DNA fingerprints |
| Restriction Fragment Length Polymorphism (RFLP) allows a small sample of DNA to be amplified through replication | false |
| scientists became aware of the existence of DNA in 1985 | false |
| Tricia notices the VNTRs on a DNA strand. How are these most likely to be represented? | as repeated segments |
| two different people had their DNA tested because they were suspects in an investigation. the results came back stating that their DNA was exactly the same. what can MOST likely be concluded based on these results? | the suspects must be identical twins |
| what is true about the use of DNA in the investigations of crimes? | publicly funded crime laboratories united states can test DNA evidence |
| what is true about genes | they determine a persons hair color |
| hybridization | binds together DNA with a complementary DNA sequence |
| CODIS | a program that contains DNA profiles of convicted offenders, missing persons, crime scene evidence, etc |
| denaturing | the breaking of the hydrogen bonds that hold the two strands of DNA together, creating single strands. |
| polymearse chain reaction | technique that allows molecular biologists to make many copies of a particular gene |
| complementary base pairing | pairings on the DNA strand |
| extension | the prosses of creation a complementary strand of DNA to the single strand |
| mitochondrial DNA | inherited from the mother |
| annealing | the process of reforming a double DNA strand |
| replication | the process by which a cell makes a copy of the DNA in its nucleus |
| chromosomes | rod-like structure that contains genetic material |
| DNA thermal cycler | creates a copy of the DNA through an automated process |
| genes | the basic and fundamental part of hereditary |
| buccal cells | cells from the inner cheek lining |
| DNA typing | the means of distinguishing |
| high explosives are more readily than low explosives | false |
| what is true about obtaining search warrants to investigate a crime scene that involves fire | warrents must be aproved withing 24 hours of the fire |
| what is likely true about a forensic scientist role in an arson case | their role is limited because the evidence is limited |
| what is likely to be true about a substrate control from a crime scene involving fire | it will be uncontaminated |
| low explosives are the least common type of explosives used | false |
| accelerant | any substance used to start a fire |
| blast effect | the outward rush of gases from the bombs site of origin |
Created by:
BM2024