Show:
firearms and ballistics
agencies and scientist
serial killer
DNA
fingerprint
100
A rifled barrel has a spiral form on the inside ​and a shotgun does not
What is the difference between rifled barrel and shotgun barrel?
100
Sherlock Holmes
Whose fictional exploits excited the imagination of early forensic scientists?
100
Someone who kills 3 or more people (as opposed to mass murders, spree killers, single homicides) with a time span of 30 days
What is a serial killer
100
Each persons DNA is different from other people(expect identical twins). DNA can link a suspect to the evidence or eliminate a suspect, similar to the use of fingerprints.
How is DNA used as evidence?
100
The study of fingerprints.
What is Dactyloscopy?
200
Rifling consists of groove cut or formed in a spiral nature, length wise down the barrel of a firearm.
What is rifling?
200
U.S. food and drug administrations. Four directorates overseeing the core functions of agency; medical products, tobacco, foods, global regulatory operations and policy, and operations.
What federal agency is the (FDA) and what types of forensic cases is this agency concerned with?
200
Criminal profiling is how law enforcement agencies track a serial killer by documenting his methods. They gather all available data and organize it to predict type of killer motive
What is criminal profiling ?
200
Touch DNA
If a person touched an object or weapon, skin cells may have been left behind. This low-level DNA is sometimes referred to as?
200
All fingers, toes, feet, and pams are covered in small ridges. These ridges help us get or keep our grip on objects.
What are fingerprints?
300
These are marks in the barrel that will be impressed on the bullet as it is fired. No two rifled barrels will have exactly the same identical striations.​
What are striations?
300
Francis Galton
The first statistical study that proved the usefulness of fingerprints
300
Based on FBI - stranger murders spiked in 1970s and early 80s - in 1983, FBI estimated 5000 people per year killed by strangers; there might be as many as 35 serial killers in the US.
What is the violent criminal apprehension program?
300
When examining evidence where it would be difficult to retrieve fingerprints- such as textured surfaces on gun handles or auto mobile dashboards.
How can low-level DNA samples be helpful?
300
A fingerprint in an individual characteristic; no two fingers have yet been found to posses identical ridge characteristics.
What are the principles of fingerprints?
400
comparison microscope​
What is a firearms examiners most important tool because it allows two bullets to be observed and compared simultaneously?​
400
Criminal violence, by accident, by suicide, suddenly when in apparent health, when unattended by a physician or by a physician in a correctional facility or in any suspicious or unusual manner or when an application is made persuant to law for a permit to cremate a body of a person.
What types of forensic cases is the NYC office of chief medical examiner concerned with?
400
MO is the method that is used to commit the crime and signature behavior is what helps to serve the criminals emotional and psychological needs.
What is the difference between a modus operandi and signature?
400
The laboratory will need to have their known biological samples available for a side by side comparison.
How can you compare the victims or suspects DNA profile to the recovered crime scene DNA?
400
Basic patterns can be further divided. / Arch patterns can be plain(4%). / Whorl patterns can be central pocket (29%). / double loop(4%). /or accidental (0.01%)
What are characteristics of fingerprints?
500
The number of lands and grooves and the lengthwise and direct of twist.
What do the characteristics of a rifle barrel include?
500
Hans Gross
This scientist wrote the first book applying science to the practices of a crime investigation and law
500
The MO is the way the killer finds, overpowers and kills the victim without getting caught. Overtime the killer refines his methods.
What is Modus Operandi?
500
DNA analysts working in laboratories that participate in the FBI's National DNA index System (NDIS) and/or are accredited by a recognized organization. They must meet specific education and training requirements.
Who conducts DNA analysis?
500
Arches are formed by ridges that enter on one side of the print and exit on the other. / whorls have lines that tend to make a circle and have at least two deltas. / Loops patterns are named for their positions related the radius and ulna bones.
What are Arches, Whorls & Loops?